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Simplifier doesn't detect trigonometric identity #123

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light-matters opened this issue Apr 14, 2023 · 1 comment

light-matters commented Apr 14, 2023

(simplify (* -8 (+  (- (* 1/8 (expt (cos 'theta) 4)))
                            (* 1/4 (expt (cos 'theta) 2))
                            (- 1/8))))

could simplify to

(expt (sin 'theta) 4)

but doesn't ...

Member

sritchie commented Apr 22, 2023

that's a toughie!! What a good challenge problem...

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