Differences from the HP 32SII
RPN Calc 32 is not an HP 32SII emulator. It is a simple RPN calculator inspired by the HP 32SII.
It implements many of the HP 32II arithmetic functions. It does not include statistic, probability, linear programming, nor base functions. It is not programmable.

The DSP key changes how numbers are displayed. There are four formats available: Fixed, Scientific, Engineering, and All. Each press of the key rotates through the formats.

The first press brings up the digits mode. Press a number key to set the number of significant digits to display. Pressing the DSP key again will rotate to the next format. Press the ENTER key to exit the display mode.

Fixed format

Scientific format

Engineering format

All format

The DSP key also has two shifted functions. The Gold shift function copies the x register to the system clipboard. The Blue shift function copies the system clipboard to the x register.

The MODES key changes the trigonometric mode. It cycles through Degrees, Radians, and Grad.
Press

before

to invoke the MODES function.