Program Lines:

Description:

(In RPN mode)

 

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$  @ $ 

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Clears flag 0, the indicator for In X. Clears flag 1, the indicator for In Y.

Sets flag 0, the indicator for In X. Clears flag 1, the indicator for In Y.

Clears flag 0, the indicator for In X. Sets flag 1, the indicator for In Y.

Sets flag 0, the indicator for ln X. Sets flag 1, the indicator for In Y.

If flag 0 is set ...

... takes the natural log of the X–input.

If flag 1 is set ...

... takes the natural log of the Y–input.

Programming Techniques 13–13