Trig simplifying hp50g

[Gilles]

(04-21-2015 12:32 PM)Thomas Ritschel Wrote:  There are quite a few commands for manipulating trigonometric functions hidden in the Catalog (CAT = right-shift SYMB), for example the TRIGSIN and TRIGTAN commands.

You can access more easily to these functions with "LShift TRIG"

To rewrite algebraic expression RShift CONVERT REWRITE is also interesting

All these functions can be used in EQW and can be applied to a subset of the equation. It's easy (POWEXPAND) to change :

SIN(X)²
------
COS(X)

in

SIN(X).SIN(X)
-------------
COS(X)

but I don't know how to change this in

Code:


        SIN(X)
SIN(X).-------
        COS(X)

Perhaps you can write a small program with the MATCH command.