The programs below are extracted from hpmuseum.org
PDF/CDF of a normal distribution
Solving a System of non-linear equations
3 equation with three unknowns
STO/RCL complex numbers + newton method
Area and perimeter of irregular polygon
Triangle, Square and Sawtooth waveforms
Bessel Functions, Arbitrary Order for HP-15C
General complex contour integration
Transition Matrix Test, Square Matrix to an Integer Power
Parallel Resistance, two resistors