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Calculator Manual

Arbitray math expressions can be solved an there is basic plotting of 2D and 3D graphs.

Calculator Interface

To enter numbers, use the numbers on the keypad.

To clear the current entry, press * on the keypad. If there is no entry, then * will exit the calculator.

To process the current entry, press # on the keypad. If there is no entry, the last entry will be reprocessed. This is useful when using entries that use the variable ans.

Buttons KA thru KE enter the functions and constants shown on the menu at the bottom of the LCD. The rotary encoder 1 will cycle thru these menus:

  KA KB KC KD KE
menu 1 + - / * .
menu 2 ans ^ e ( )
menu 3 log ln abs sqrt )
menu 4 sin cos tan pi )
menu 5 asin acos atan pi )
menu 6 sinh cosh tanh pi )

Turning the rotary encoder 2 counter-clockwise will serve as a backspace.

Turnin the rotary encoder 2 clockwise will show this menu:

KA KB KC KD KE
last Gr2D Gr3D y x

last: will re-enter the last entry processed
Gr2D: will plot a 2D graph.
Gr3D: will plot a 3D graph.

Calculator Demo:

Last Updated on Saturday, 24 July 2010 22:07  

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