The following programs can be used on the HP 48g series calculator. Each program is a particular implementation of the Riemann Sum approximation of a definite integral of a continuous function, (see Figure 1).
Figure : Riemann Sum approximation
Key

Description

Text Representation


Right shift key

RS


Leftshift key

LS


Move cursor left

cursorleft


Move cursor right

cursorright


Move cursor up

cursorup


Move cursor down

cursordown


Backspace/clear

backspace

note:
To enter the WHERE command, press the following keys: LS+SYMBOLIC, then NXT
note:
Use the following program for a simple data entry form.