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• Científicas
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• Preguntas y Respuestas
• Comparativas
• HP12c new vs. old
• Libros
• Educación
• ¿Por qué RPN?
• HP pero baratas
• Club
• Audio
• Financieras
• Gráficas
• Calculadoras Clásicas
• Accesorios
• Guia de selección
• Información de contacto
• Condiciones generales
• Política de privacidad
• Productos en promoción
• Preguntas y Respuestas
• Comparativas
• HP12c new vs. old
• Libros
• Educación
• ¿Por qué RPN?
• HP pero baratas
• Club
• Audio
• HP Prime Cursos y Documentos
• Manuales
• HP Newsletter
• HP Journal
• HP Keynotes
• HP Catalogs
• HP 50g Tutorial videos - inglés
• Otros videos relacionados con calculadoras HP
• HP 17BII tutorial
• Manuales avanzados
• ¿Por qué RPN? ¿Y cómo funciona?
• Documentos variados relacionados con calculadoras
• Auto tests
• HP15c Tutorials
• Newsletters TheCalculatorStore
• Varios DIY de Calculadoras HP
• hp50g - Other tutorials
• Calculator Tutorials
• Application calculation guides
• HP39gII Tutorials
• Manuales
• HP Newsletter
• HP Journal
• HP Keynotes
• HP Catalogs
• HP 50g Tutorial videos - inglés
• Otros videos relacionados con calculadoras HP
• HP 17BII tutorial
• Manuales avanzados
• ¿Por qué RPN? ¿Y cómo funciona?
• Documentos variados relacionados con calculadoras
• Auto tests
• HP15c Tutorials
• Newsletters TheCalculatorStore
• Varios DIY de Calculadoras HP
• hp50g - Other tutorials
• Calculator Tutorials
• Application calculation guides
• HP39gII Tutorials
• Software for HP12c
• Software for HP15c
• Software for HP 17bII
• Software for HP 35s
• Software for HP 41c/cv/cx
• Software for HP 41CL
• software for HP39gs/40gs
• Software for HP50g
• software for HP42s
• 50g Calculadora Gráfica
• Emulators
• Software for HP39GII
• Software for HP Prime
• Software for HP15c
• Software for HP 17bII
• Software for HP 35s
• Software for HP 41c/cv/cx
• Software for HP 41CL
• software for HP39gs/40gs
• Software for HP50g
• software for HP42s
• 50g Calculadora Gráfica
• Emulators
• Software for HP39GII
• Software for HP Prime
• 16 € reduction in the HP50g Blue
• 2 HP41cL on offer
• 3D Printing - not good enough!
• 3D Printing link
• 3D printing - examples
• 3D side cover
• 3 more HP41cl circuits here!
• 5 dias para el final de la oferta
• A Casio in HP livery - the HP300s+
• A HP15c reissue - but not the real deal
• A HP17bII-type solver for the HP50g
• A HP 54201D oscilloscope
• A Time module to go with a HP41CL
• A boxed HP41CL and the HP19bII collectors' set
• A brief description of the HP41CL
• A comparison between HP 17bII, HP 17bII+ gold and HP 17bII+ silver
• A couple of HP97
• A couple of audio-related products
• A couple of speed tests and some more comments on the new HP12c
• A curiosity on the Prime and a Time machine module
• A hint for the HP 41CL
• A lot of HP17bII+
• A method to calculate Pi using Pythagoras' theorem: one solution for HP41c
• A method to calculate pi based on Pythagoras theorem
• A new Zebra batch has arrived
• A new product for HP41c repair
• A new product may be coming...
• A new repair method being tested for lower post of HP41c
• A new solution for broken back sides of HP41c
• A new time module on sale in a few days
• A new watch - and an old one...
• A nice collection of HP12c in the web
• A penny for your thoughts
• A rare, non HP, ultra-old calculator
• A repair solution for the back side of the HP41c family
• A tip on the HP15c official emulator
• A tip to use Prime in your business
• A trace mode "accountant type" for the HP 50g
• About the HPCC Journal
• Absolute beginners' guide to the HP Prime
• Adventures with the HP41CL and the %T function..
• An attractive moment for calculator lovers
• An emulator for the new HP300s+
• An eventful week
• An important advice concerning Streamsmart 410 and Fourier Probes
• An offer on the HP39gII
• And Finally...there are here !!!
• ...And the same method for the HP Prime!
• Another HP Prime site
• Another gift idea: the HP85A
• Any difficulties in upgrading HP Prime?
• Assembled flex and standalone flex circuits back in stock
• Assigning percentage keys to the HP Prime
• Astronomy for HP Calculators
• At long, long last...The HP15c Limited Edition Arrives !!
• Available Fourier Probes
• Available HP41CL units - and time modules!
• Back from Holidays
• Back from holidays...
• Back to the office!
• Base formulae project
• Base formulae project (2)
• Base formulae project (3)
• Battery bay repair piece
• Battery module for broken calculator backs
• Black Friday - day one: HP41cv and HP41cx at rock-bottom prices!
• Black Friday - day two: more offers
• Black HP17bII
• Black and Scholes for the different HP calculators
• Bode plotting app for HP Prime
• Broken HP41c back repair manual with 3D piece
• Buying calculators in internet sites
• Buying used calculators - sad stories 1
• CAS!!
• CHOOSE() menu function for HP Prime
• Calcpad 200 discontinued in our web
• Calculator Gift ideas for Christmas
• Calculator repair
• Calculator repair - Adhesive conductive tape
• Calculator repair - spare parts
• Calculators and the MoMA in New York
• Calculators for the Iphone 5
• Card reader repair for HP41c
• Change in focus in reference to the HP41CL
• Clamshell and Pioneer Repairs - first comments
• Clarification on HP41CL pricing
• Collector's Pack
• Comments on HP41CL troubleshooting
• Comments on HP41c battery repair kit
• Comments on Prime's new firmware
• Continuation on new repair aid piece
• Convert HP15c in a financial calculator - in addition to be one of the best scientific there were!
• Corrosion on battery contacts
• Court success HP15c
• Currency Exchange for the HP41CL
• Customizing the HP Prime
• Customizing the HP Prime for Business use (II)
• Customizing your Prime for business use (I)
• ·D printing HP 41c ports
• Date functions for the HP Prime
• Development priorities
• Differences between Prime revision A and C
• Different behavior between different number formats in RPN mode in Home
• Different keyboards in new HP12c
• Eddie Shore's blog - now video tutorials
• Equation library for the HP Prime
• Equation library program analyzed
• Even more tips on repairing calculators
• Feet arrived!
• Feet for Coconuts and Voyagers
• Final post on statistical distributions on HP Prime
• Finally got a HP27s!
• Financial calculators
• First appearance on print of TheCalculatorStore
• First contact with the HP12c
• First steps with Smartstream 410 and HP Prime
• Flex circuit installation for the HP41c calculators
• Four new products
• Fourier Probes
• Function library in the HP Prime - very similar to the HP50g's
• Further pictures of the backside repair pieces
• Games for the HP Prime
• Games for the HP Prime
• Goertz speaker cables
• Guarantee for HP calculators explained
• HP-IB vintage Lab
• HP12c Anniversary .
• HP12c Anniversary - European shipment
• HP12c versions
• HP12c vs HP17bII comparison? Maybe
• HP15CL battery bug
• HP15c LE emulator
• HP15c Limited Edition arrived
• HP15c Limited Edition manual
• HP15c Warranty repairs
• HP15c and HP41CL
• HP15c clone coming back - but now with a competitive advantage!
• HP15c finally arrived to our warehouse
• HP16c compatibility module for HP41C-CL
• HP17bII+ - more...
• HP17bII as the best all around financial calculator
• HP17bII as the best all around financial calculator
• HP32sII
• HP35s Appreciation
• HP39gII - collectible?
• HP41CL and time module
• HP41CL back in!
• HP41CL with Time Module
• HP41c models in our website
• HP41c repairs!
• HP41c types of repair
• HP41cl no more...
• HP41cl, time module and battery pack
• HP45 Easter Egg
• HP50g Blue no more!
• HP50g appreciation
• HP50g for finance - an engineer lost in a world of hp12cs!
• HP54201D mixed signal oscilloscope available again
• HP54501a repaired
• HP85 memories
• HP 15c LE last production run.
• HP 17bII+ vs HP19bII
• HP 300s+ has arrived
• HP 41CL - offer
• HP 41CL Appreciation
• HP 41C repair kit
• HP 41c battery bay repair kit
• HP 41c battery bay repair kit
• HP 50g vs HP Prime (I)
• HP 54501a oscilloscope
• HP 8591E Spectrum Analyzer
• HP Financial calculators
• HP Guarantee
• HP Operating Environment limits - HP15c Limited Edition
• HP Prime - Possibilities at school
• HP Prime - equation systems basics
• HP Prime -planet orbits
• HP Prime, BCD and binary
• HP Prime Firmware Update
• HP Prime Firmware Update
• HP Prime (G8X92AA) available again
• HP Prime iOS app!!
• HP Prime in secondary education
• HP Prime information sources
• HP Prime loading program procedure
• HP Prime: more information
• HP Prime pro
• HP Prime's wireless kit
• HP Prime settings storing and retrieving
• HP Prime user keys
• HP Prime versions and Streamsmart 410
• HP SmartCalc 300s review
• HP and the educational market
• HP current scientific calculators
• HP infrared printer module
• HP instruments coming
• HP official emulators
• HP official news about Prime!
• HP original Thermal Printer paper
• HP's own website for the HP Prime
• Higher 3D printing prices
• Horses for Courses
• How I have configured my HP15c for financial duties (II)
• How I have configured my HP15c for financial duties (III)
• How I have configured my HP15c for financial duties (IV)
• How I have configured my HP 15c for financial duties
• How to create your own HP41CL
• How to make your Prime programs not dependent of the HP Prime number settings
• How to promote Prime (and not only in the school)
• How to really learn more about the Prime
• How to replace a HP41c screen
• How to treat your HP Calculator
• I found it!
• I have lost my HP 15c LE !
• If you always envied the young look of your colleague's Casios and Texas...
• Ineresting app for the HP Prime and more Prime software
• Initialization HP41CL - and some problem solving
• Inverting a Matrix in HP Prime in RPN (basic!)
• Just received my first 30b - first impressions
• Just received the HP67 !!!
• Last HP12c Anniversary and HP15c Limited Edition!
• Last HP41CL units!
• Mac Prime Emulator
• Manual for Battery-port assembly
• Measure conversion facility for the HP-41CL
• Monthly closing with the HP17bII - some comments
• More Fourier Probes for the HP Prime
• More HP19bII
• More about Prime
• More about the HP17bII
• More about the HP41 CL
• More about the Multi-Language software for the HP50g
• More comments on the HP12c keyboards
• More comments on the HP Prime
• More information on the HP54501a oscilloscope
• More musings on the HP 41CL
• More news about the site
• More news on the HP15c...
• More on Equations for the HP Prime
• More on the HP97 - 2 for sale
• More on the HP 12c Platinum
• More places to find Prime software
• More random number generator according to different statistical distributions for HP Prime
• More repair tips for HP calculators
• More speed comparisons for the different versions of HP17bII
• More tutorials for the HP Prime
• More units of HP41CL
• Musings on headphones and earphones
• My HP calculator history (I)
• My configuration for the HP41CL
• My other passion
• NPV and IRR on the HP Prime
• N.O.S. power supply for HP82240B
• New Firmware for the HP Prime - version 7820
• New Fourier Probe list.
• New HP-PRIME G2/B1S (2AP18AA)
• New HP12c set
• New HP15c LE batch arrived
• New HP41CL batch in production
• New HP41CLs available
• New HP41CV units!
• New HP41c repair kits!
• New HP50g vs Classic 15c
• New HP calculators: HP smartcalc 300s+ and HP10s+
• New Prime
• New Prime Firmware beta!
• New Prime firmware coming!
• New Prime, freezing and guarantee
• New Product: 4 x back case repair piece!
• New Service - second hand equipment market
• New articles for this Christmas tree
• New batch of springs
• New connectivity and virtual Prime calculator software!
• New design in for testing
• New drop-in solution for port and battery connector
• New firmware for the HP Prime
• New firmware for the HP Prime
• New flashing service
• New items in the HP41c corner
• New modules for HP41CL and some changes
• New products
• New products and some coming back!
• New products coming
• New products in the web
• New tall keys HP41c arrived, to be converted into HP41CL!
• New time functions in HP Prime
• New units coming in
• New version of wp34s: 3.3
• New video tutorials for HP50g, HP12c
• News
• News for HP41CL users
• News on HP Prime equipment
• No HP15c for Christmas
• Notice about StreamSmart 410 and HP50g
• Now TheCalculatorStore is visible on your smartphone
• Number theory and HP Prime
• Offer HP Prime and other calcs
• Offers for Black Friday - 2
• Offers for Black Friday - 1
• Offers on HP Prime old models elsewhere
• Official Emulator for the HP39GII
• Old HP calculators and programming quality
• One more HP15c
• Ownership Pride and Hewlett Packard calculators
• PPC ROM Module
• Playing with the HP Prime
• Prime
• Prime - news
• Prime Emulator
• Prime Firmware Comments
• Prime firmware update 2
• Prime new firmware (II)
• Prime: some pictures off an emulator
• Programming the HP41CL - some comments.
• Questions about the new pieces for repair
• ROM upgrade for the HP39GII
• RPN Spreadsheet behaviour
• RPN and the HP19bII
• RPN calculator for Macs
• RPN or not?
• Ramblings about technical issues of scientific new calculators
• Ran out of HP41CV
• Rechargeable batteries for HP41
• Register Arithmetic on the 12c
• Repair in old HPs - things to avoid
• Repair kit is back
• Repair kits back again!
• Repair kits back in stock
• Repair of HP41c posts - some ideas
• Repair service for HP41C
• Repair your calculator during the lock down!
• Repairing HP old multimeters
• Repairing calculators
• Repairing the rusting battery bay of HP41c.
• Return to the HP 17bII+
• Same for the new Sandmath 2x2
• Sandmath 4x4 fix for %T (same as for Sandmath 2x2 previously)
• Scientific Calc's Collector's Pack
• Screen tab menus on the HP Prime
• Screws for Coconut calculators
• Screws for Coconut calculators
• Selling in Pounds!
• Shady Calculator Stories
• Shipping included for Prime!
• SmartStream 410 and HP Prime training program
• Some challenges with the new firmware
• Some interesting links for HP Prime
• Some more blue HP50g
• Some news
• Some press reactions to the HP12c, HP15c reissues
• Some speed tests comparing old and new HP 15 LE
• Some tips on iPad
• Statistical Distributions in HP Prime
• Statistical distributions for the HP Prime - 2
• Success of new HP41c repair methods
• Suggestions for a change in HP17bII+
• Tall keys, low serial number HP41CL
• Testing HP41C with oscilloscope
• Testing repaired HP41C
• Tetris in the HP50g
• The DM-15cc HP15c clone arrived
• The HP10bII+
• The HP10bII+ - a different animal from previous models
• The HP12c Anniversary is now in stock !!
• The HP12c Platinum
• The HP16c Emulator (I)
• The HP30b
• The HP39GII is coming!
• The HP41CL - our first conversion
• The HP41c repair kit is back!
• The HP41c repair kit stock finished in 4 hours
• The HP48SX
• The HP50g as a financial tool (II)
• The HP82240B Infrared Printer
• The HP85 and my 7 year old
• Our sister site
• The HP 41CL Calculator
• The HP 41CL is back!
• The HP view on education - some interesting aspects
• The Kinomi Project
• The Prime for solving problems at school - one example close to me
• The Psion Series 5 - part 1
• The WP 34s is back!
• The amazing HP17bII financial calculator - 1
• The beauty of RPN
• The calculator as a gift.
• The calculator as a gift 2
• The hp Prime at school.
• The humble HP10bII+
• The life goes on...
• The mighty HP42s
• The new HP10bII+ has arrived!
• The new HP10s+
• The new HP39GII has arrived!!
• The new HP41c from Swissmicro
• The new Scientific Calculators from HP - part one
• The new programming language Swift
• The problem with ordering bulk in China
• Time functions for HP Prime
• Time module in HP41CL
• Time module on sale
• Transport costs and cash-back offer
• Tutorials for HP15c
• Two different types of HP19bII
• Two more HP41CL assembled
• Two new HP 41CL alive!
• Two new old HP19bII
• Two units of HP15C - Limited Edition
• Types of current HP12c
• Updating your HP 41CL
• Use of menus when programming the HP Prime
• Use this java emulator...
• Video Tutorials for Prime and 41CL
• WP34s
• WP 34s just born
• Where is the sun in the Lofoten Island? Ask your Prime
• Which calculator to take with you on a 2 weeks' holiday?
• Why using a handheld calculator nowadays - part I
• Why using a handheld calculator nowadays - part II
• Working with hours, min and seconds in HP Prime
• X-Functions and X-Memory
• Yet another Easter egg in the HP50g
• Yet another method for Pi - this time from the outside!
• You can now order the Battery-ports assembly!
• Zebra connectors for HP
• Zebras for HP41c
• Zebras for the HP41c
• black HP17bII
• calculators for travel - some ideas
• hp30b and wp34s - disappearing?
• hp41 battery repair pack
• hp42s
• hp 19bII - back battery door
• latest HP15c LE vs. HP41CL
• more info about the HP41CL
• new firmware 8151 for HP Prime
• offers for Black Friday - 3
• screw set for HP41c series
• stop new firmware install!
• tips on using the HP41c repair kit
• to do list
• tricks for units use in HP Prime
• wp34s - last donors
• wp34s - part 1
• Start up a new blog
• 2 HP41cL on offer
• 3D Printing - not good enough!
• 3D Printing link
• 3D printing - examples
• 3D side cover
• 3 more HP41cl circuits here!
• 5 dias para el final de la oferta
• A Casio in HP livery - the HP300s+
• A HP15c reissue - but not the real deal
• A HP17bII-type solver for the HP50g
• A HP 54201D oscilloscope
• A Time module to go with a HP41CL
• A boxed HP41CL and the HP19bII collectors' set
• A brief description of the HP41CL
• A comparison between HP 17bII, HP 17bII+ gold and HP 17bII+ silver
• A couple of HP97
• A couple of audio-related products
• A couple of speed tests and some more comments on the new HP12c
• A curiosity on the Prime and a Time machine module
• A hint for the HP 41CL
• A lot of HP17bII+
• A method to calculate Pi using Pythagoras' theorem: one solution for HP41c
• A method to calculate pi based on Pythagoras theorem
• A new Zebra batch has arrived
• A new product for HP41c repair
• A new product may be coming...
• A new repair method being tested for lower post of HP41c
• A new solution for broken back sides of HP41c
• A new time module on sale in a few days
• A new watch - and an old one...
• A nice collection of HP12c in the web
• A penny for your thoughts
• A rare, non HP, ultra-old calculator
• A repair solution for the back side of the HP41c family
• A tip on the HP15c official emulator
• A tip to use Prime in your business
• A trace mode "accountant type" for the HP 50g
• About the HPCC Journal
• Absolute beginners' guide to the HP Prime
• Adventures with the HP41CL and the %T function..
• An attractive moment for calculator lovers
• An emulator for the new HP300s+
• An eventful week
• An important advice concerning Streamsmart 410 and Fourier Probes
• An offer on the HP39gII
• And Finally...there are here !!!
• ...And the same method for the HP Prime!
• Another HP Prime site
• Another gift idea: the HP85A
• Any difficulties in upgrading HP Prime?
• Assembled flex and standalone flex circuits back in stock
• Assigning percentage keys to the HP Prime
• Astronomy for HP Calculators
• At long, long last...The HP15c Limited Edition Arrives !!
• Available Fourier Probes
• Available HP41CL units - and time modules!
• Back from Holidays
• Back from holidays...
• Back to the office!
• Base formulae project
• Base formulae project (2)
• Base formulae project (3)
• Battery bay repair piece
• Battery module for broken calculator backs
• Black Friday - day one: HP41cv and HP41cx at rock-bottom prices!
• Black Friday - day two: more offers
• Black HP17bII
• Black and Scholes for the different HP calculators
• Bode plotting app for HP Prime
• Broken HP41c back repair manual with 3D piece
• Buying calculators in internet sites
• Buying used calculators - sad stories 1
• CAS!!
• CHOOSE() menu function for HP Prime
• Calcpad 200 discontinued in our web
• Calculator Gift ideas for Christmas
• Calculator repair
• Calculator repair - Adhesive conductive tape
• Calculator repair - spare parts
• Calculators and the MoMA in New York
• Calculators for the Iphone 5
• Card reader repair for HP41c
• Change in focus in reference to the HP41CL
• Clamshell and Pioneer Repairs - first comments
• Clarification on HP41CL pricing
• Collector's Pack
• Comments on HP41CL troubleshooting
• Comments on HP41c battery repair kit
• Comments on Prime's new firmware
• Continuation on new repair aid piece
• Convert HP15c in a financial calculator - in addition to be one of the best scientific there were!
• Corrosion on battery contacts
• Court success HP15c
• Currency Exchange for the HP41CL
• Customizing the HP Prime
• Customizing the HP Prime for Business use (II)
• Customizing your Prime for business use (I)
• ·D printing HP 41c ports
• Date functions for the HP Prime
• Development priorities
• Differences between Prime revision A and C
• Different behavior between different number formats in RPN mode in Home
• Different keyboards in new HP12c
• Eddie Shore's blog - now video tutorials
• Equation library for the HP Prime
• Equation library program analyzed
• Even more tips on repairing calculators
• Feet arrived!
• Feet for Coconuts and Voyagers
• Final post on statistical distributions on HP Prime
• Finally got a HP27s!
• Financial calculators
• First appearance on print of TheCalculatorStore
• First contact with the HP12c
• First steps with Smartstream 410 and HP Prime
• Flex circuit installation for the HP41c calculators
• Four new products
• Fourier Probes
• Function library in the HP Prime - very similar to the HP50g's
• Further pictures of the backside repair pieces
• Games for the HP Prime
• Games for the HP Prime
• Goertz speaker cables
• Guarantee for HP calculators explained
• HP-IB vintage Lab
• HP12c Anniversary .
• HP12c Anniversary - European shipment
• HP12c versions
• HP12c vs HP17bII comparison? Maybe
• HP15CL battery bug
• HP15c LE emulator
• HP15c Limited Edition arrived
• HP15c Limited Edition manual
• HP15c Warranty repairs
• HP15c and HP41CL
• HP15c clone coming back - but now with a competitive advantage!
• HP15c finally arrived to our warehouse
• HP16c compatibility module for HP41C-CL
• HP17bII+ - more...
• HP17bII as the best all around financial calculator
• HP17bII as the best all around financial calculator
• HP32sII
• HP35s Appreciation
• HP39gII - collectible?
• HP41CL and time module
• HP41CL back in!
• HP41CL with Time Module
• HP41c models in our website
• HP41c repairs!
• HP41c types of repair
• HP41cl no more...
• HP41cl, time module and battery pack
• HP45 Easter Egg
• HP50g Blue no more!
• HP50g appreciation
• HP50g for finance - an engineer lost in a world of hp12cs!
• HP54201D mixed signal oscilloscope available again
• HP54501a repaired
• HP85 memories
• HP 15c LE last production run.
• HP 17bII+ vs HP19bII
• HP 300s+ has arrived
• HP 41CL - offer
• HP 41CL Appreciation
• HP 41C repair kit
• HP 41c battery bay repair kit
• HP 41c battery bay repair kit
• HP 50g vs HP Prime (I)
• HP 54501a oscilloscope
• HP 8591E Spectrum Analyzer
• HP Financial calculators
• HP Guarantee
• HP Operating Environment limits - HP15c Limited Edition
• HP Prime - Possibilities at school
• HP Prime - equation systems basics
• HP Prime -planet orbits
• HP Prime, BCD and binary
• HP Prime Firmware Update
• HP Prime Firmware Update
• HP Prime (G8X92AA) available again
• HP Prime iOS app!!
• HP Prime in secondary education
• HP Prime information sources
• HP Prime loading program procedure
• HP Prime: more information
• HP Prime pro
• HP Prime's wireless kit
• HP Prime settings storing and retrieving
• HP Prime user keys
• HP Prime versions and Streamsmart 410
• HP SmartCalc 300s review
• HP and the educational market
• HP current scientific calculators
• HP infrared printer module
• HP instruments coming
• HP official emulators
• HP official news about Prime!
• HP original Thermal Printer paper
• HP's own website for the HP Prime
• Higher 3D printing prices
• Horses for Courses
• How I have configured my HP15c for financial duties (II)
• How I have configured my HP15c for financial duties (III)
• How I have configured my HP15c for financial duties (IV)
• How I have configured my HP 15c for financial duties
• How to create your own HP41CL
• How to make your Prime programs not dependent of the HP Prime number settings
• How to promote Prime (and not only in the school)
• How to really learn more about the Prime
• How to replace a HP41c screen
• How to treat your HP Calculator
• I found it!
• I have lost my HP 15c LE !
• If you always envied the young look of your colleague's Casios and Texas...
• Ineresting app for the HP Prime and more Prime software
• Initialization HP41CL - and some problem solving
• Inverting a Matrix in HP Prime in RPN (basic!)
• Just received my first 30b - first impressions
• Just received the HP67 !!!
• Last HP12c Anniversary and HP15c Limited Edition!
• Last HP41CL units!
• Mac Prime Emulator
• Manual for Battery-port assembly
• Measure conversion facility for the HP-41CL
• Monthly closing with the HP17bII - some comments
• More Fourier Probes for the HP Prime
• More HP19bII
• More about Prime
• More about the HP17bII
• More about the HP41 CL
• More about the Multi-Language software for the HP50g
• More comments on the HP12c keyboards
• More comments on the HP Prime
• More information on the HP54501a oscilloscope
• More musings on the HP 41CL
• More news about the site
• More news on the HP15c...
• More on Equations for the HP Prime
• More on the HP97 - 2 for sale
• More on the HP 12c Platinum
• More places to find Prime software
• More random number generator according to different statistical distributions for HP Prime
• More repair tips for HP calculators
• More speed comparisons for the different versions of HP17bII
• More tutorials for the HP Prime
• More units of HP41CL
• Musings on headphones and earphones
• My HP calculator history (I)
• My configuration for the HP41CL
• My other passion
• NPV and IRR on the HP Prime
• N.O.S. power supply for HP82240B
• New Firmware for the HP Prime - version 7820
• New Fourier Probe list.
• New HP-PRIME G2/B1S (2AP18AA)
• New HP12c set
• New HP15c LE batch arrived
• New HP41CL batch in production
• New HP41CLs available
• New HP41CV units!
• New HP41c repair kits!
• New HP50g vs Classic 15c
• New HP calculators: HP smartcalc 300s+ and HP10s+
• New Prime
• New Prime Firmware beta!
• New Prime firmware coming!
• New Prime, freezing and guarantee
• New Product: 4 x back case repair piece!
• New Service - second hand equipment market
• New articles for this Christmas tree
• New batch of springs
• New connectivity and virtual Prime calculator software!
• New design in for testing
• New drop-in solution for port and battery connector
• New firmware for the HP Prime
• New firmware for the HP Prime
• New flashing service
• New items in the HP41c corner
• New modules for HP41CL and some changes
• New products
• New products and some coming back!
• New products coming
• New products in the web
• New tall keys HP41c arrived, to be converted into HP41CL!
• New time functions in HP Prime
• New units coming in
• New version of wp34s: 3.3
• New video tutorials for HP50g, HP12c
• News
• News for HP41CL users
• News on HP Prime equipment
• No HP15c for Christmas
• Notice about StreamSmart 410 and HP50g
• Now TheCalculatorStore is visible on your smartphone
• Number theory and HP Prime
• Offer HP Prime and other calcs
• Offers for Black Friday - 2
• Offers for Black Friday - 1
• Offers on HP Prime old models elsewhere
• Official Emulator for the HP39GII
• Old HP calculators and programming quality
• One more HP15c
• Ownership Pride and Hewlett Packard calculators
• PPC ROM Module
• Playing with the HP Prime
• Prime
• Prime - news
• Prime Emulator
• Prime Firmware Comments
• Prime firmware update 2
• Prime new firmware (II)
• Prime: some pictures off an emulator
• Programming the HP41CL - some comments.
• Questions about the new pieces for repair
• ROM upgrade for the HP39GII
• RPN Spreadsheet behaviour
• RPN and the HP19bII
• RPN calculator for Macs
• RPN or not?
• Ramblings about technical issues of scientific new calculators
• Ran out of HP41CV
• Rechargeable batteries for HP41
• Register Arithmetic on the 12c
• Repair in old HPs - things to avoid
• Repair kit is back
• Repair kits back again!
• Repair kits back in stock
• Repair of HP41c posts - some ideas
• Repair service for HP41C
• Repair your calculator during the lock down!
• Repairing HP old multimeters
• Repairing calculators
• Repairing the rusting battery bay of HP41c.
• Return to the HP 17bII+
• Same for the new Sandmath 2x2
• Sandmath 4x4 fix for %T (same as for Sandmath 2x2 previously)
• Scientific Calc's Collector's Pack
• Screen tab menus on the HP Prime
• Screws for Coconut calculators
• Screws for Coconut calculators
• Selling in Pounds!
• Shady Calculator Stories
• Shipping included for Prime!
• SmartStream 410 and HP Prime training program
• Some challenges with the new firmware
• Some interesting links for HP Prime
• Some more blue HP50g
• Some news
• Some press reactions to the HP12c, HP15c reissues
• Some speed tests comparing old and new HP 15 LE
• Some tips on iPad
• Statistical Distributions in HP Prime
• Statistical distributions for the HP Prime - 2
• Success of new HP41c repair methods
• Suggestions for a change in HP17bII+
• Tall keys, low serial number HP41CL
• Testing HP41C with oscilloscope
• Testing repaired HP41C
• Tetris in the HP50g
• The DM-15cc HP15c clone arrived
• The HP10bII+
• The HP10bII+ - a different animal from previous models
• The HP12c Anniversary is now in stock !!
• The HP12c Platinum
• The HP16c Emulator (I)
• The HP30b
• The HP39GII is coming!
• The HP41CL - our first conversion
• The HP41c repair kit is back!
• The HP41c repair kit stock finished in 4 hours
• The HP48SX
• The HP50g as a financial tool (II)
• The HP82240B Infrared Printer
• The HP85 and my 7 year old
• Our sister site
• The HP 41CL Calculator
• The HP 41CL is back!
• The HP view on education - some interesting aspects
• The Kinomi Project
• The Prime for solving problems at school - one example close to me
• The Psion Series 5 - part 1
• The WP 34s is back!
• The amazing HP17bII financial calculator - 1
• The beauty of RPN
• The calculator as a gift.
• The calculator as a gift 2
• The hp Prime at school.
• The humble HP10bII+
• The life goes on...
• The mighty HP42s
• The new HP10bII+ has arrived!
• The new HP10s+
• The new HP39GII has arrived!!
• The new HP41c from Swissmicro
• The new Scientific Calculators from HP - part one
• The new programming language Swift
• The problem with ordering bulk in China
• Time functions for HP Prime
• Time module in HP41CL
• Time module on sale
• Transport costs and cash-back offer
• Tutorials for HP15c
• Two different types of HP19bII
• Two more HP41CL assembled
• Two new HP 41CL alive!
• Two new old HP19bII
• Two units of HP15C - Limited Edition
• Types of current HP12c
• Updating your HP 41CL
• Use of menus when programming the HP Prime
• Use this java emulator...
• Video Tutorials for Prime and 41CL
• WP34s
• WP 34s just born
• Where is the sun in the Lofoten Island? Ask your Prime
• Which calculator to take with you on a 2 weeks' holiday?
• Why using a handheld calculator nowadays - part I
• Why using a handheld calculator nowadays - part II
• Working with hours, min and seconds in HP Prime
• X-Functions and X-Memory
• Yet another Easter egg in the HP50g
• Yet another method for Pi - this time from the outside!
• You can now order the Battery-ports assembly!
• Zebra connectors for HP
• Zebras for HP41c
• Zebras for the HP41c
• black HP17bII
• calculators for travel - some ideas
• hp30b and wp34s - disappearing?
• hp41 battery repair pack
• hp42s
• hp 19bII - back battery door
• latest HP15c LE vs. HP41CL
• more info about the HP41CL
• new firmware 8151 for HP Prime
• offers for Black Friday - 3
• screw set for HP41c series
• stop new firmware install!
• tips on using the HP41c repair kit
• to do list
• tricks for units use in HP Prime
• wp34s - last donors
• wp34s - part 1
• Start up a new blog
• Anteriores versiones de la HP Prime y Smartstream 410
• Atajos en la HP Prime
• El HP85 (continuación)
• El firmware de la HP 15c
• El sistema RPN - una primera introducción
• La HP41c
• Mi otra pasión
• Pi mediante teorema de Pitágoras
• Pi por teorema de Pitágoras: una posible solución para HP41c
• Primera entrada del blog en Español
• ¿Si buscamos Pi por el exterior?
• Un sistema de medición con la HP41cx
• ...y otra solución para la HP Prime
• Atajos en la HP Prime
• El HP85 (continuación)
• El firmware de la HP 15c
• El sistema RPN - una primera introducción
• La HP41c
• Mi otra pasión
• Pi mediante teorema de Pitágoras
• Pi por teorema de Pitágoras: una posible solución para HP41c
• Primera entrada del blog en Español
• ¿Si buscamos Pi por el exterior?
• Un sistema de medición con la HP41cx
• ...y otra solución para la HP Prime