challenge for trigsimp
- Subject: challenge for trigsimp
- From: Richard Hennessy
- Date: Tue, 29 Sep 2009 20:35:47 -0400
I guess it is okay that they can't do it. pwsimp() can do it, which I forgot about (even though I wrote it).
(%i1) pwsimp(((signum(x - 1) + 1) * signum(x + 1) - signum(x - 1)),x);
(out1) 1
Never mind.
Rich
Richard Hennessy wrote:
> (%i1) ratsimp(( (signum(x - 1) + 1) * signum(x + 1) - signum(x - 1)));
> (out1) (signum(x - 1) + 1) signum(x + 1) - signum(x - 1)
>
> (%i3) radcan( (signum(x - 1) + 1) * signum(x + 1) - signum(x - 1));
> (out2) (signum(x - 1) + 1) signum(x + 1) - signum(x - 1)
>
> (%i4) factor( (signum(x - 1) + 1) * signum(x + 1) - signum(x - 1));
> (out4) signum(x - 1) signum(x + 1) + signum(x + 1) - signum(x - 1)
>
> (%i5) expand( (signum(x - 1) + 1) * signum(x + 1) - signum(x - 1));
> (out5) signum(x - 1) signum(x + 1) + signum(x + 1) - signum(x - 1)
>
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