Calculator blog
Musings and comments about our common interest
Price Reduction for new HP calculators
Published on by JGD
We have recently reduced the price of most HP calculators, due to higher volume:
Important announcement regarding HP15c CE deliveries
Published on by JGD
We have learned some things about the coming production and deliveries of HP15c Collector's Edition:
- Production is scheduled to take place around the 10th of July.
- Air freight deliveries will typically occur during week 3rd or 4th of July.
- So far only The Calculator Store has ordered Air freight (at a cost!) : 600 units, of which 490 are already sold. We will begin to ship by the end of July.
- The rest will be shipped by boat, and will arrive not...
Calculate digits of e
Published on by JGD
Several years ago Valentín Albillo posted a document, Comments: 0 | Read entire post
Selling the HP15c CE to non-fanatics
Published on by JGD
We created this website because we are calculator fanatics - much like you. And we see the beauty of the HP15c. In some cases we've been longing for the calculator ...
Solving a 8x8 equation system in the new HP15C Collector's Edition
Published on by JGD
We have tested the matrix capabilities of the new HP15C Collector's Edition, by trying a 8x8 equation system. This was completely impossible to do with any of the previous releases: they maxed memory allocable to matrices at 64 - so you could only invert a 8x8 matrix - but not solving a system since you needed the independent values' vector.
We started creating the two matrices, and filling them with random data, in the hope they would not be singular. To do tha...
Just in...
Published on by JGD
Here is what we have received this morning - aHP15c CE test unit.
Let's do a proper unboxing tonigh, shall we?
Difference between standard case and leather case for the HP15c calculator
Published on by JGD
We have received many questions on the leather vs PU cases for the new HP15c calculator.
The first comment that comes to mind is that it is not "either/or". When you select the Leather version, you get the leather case plus the case the HP15c comes with. So if and when one of the two breaks down, you still have the other.
The second: here is how the...
HP15c Collector's Edition speed tests
Published on by JGD
I mentioned in yesterday's blog that I intended to do some speed comparisons between the HP15c Collector's Edition and othe HP15c models - however, I am missing a HP15c LE since the one I have is bricked from a previous attempt at reprogramming it with a firmware with more memory. Also my Mac cannot handle a RS232 interface properly (at least I ha...
The HP15c Collector's Edition
Published on by JGD
You may already know the news: there is a new reissue of the HP15c: the Collector's Edition. Today the HP licensee Moravia has announced this new product, of which only 10.000 units will be produced. The calculator will be sold in a package that can also ...