sign or conjugate bug

• Subject: sign or conjugate bug
• From: Barton Willis
• Date: Fri, 31 Oct 2008 07:38:32 -0500

Does anybody know of a workaround or fix for the bug:

OK:

 (%i1) conjugate(sqrt(1-x^2)) - sqrt(1-x^2);
 (%o1) conjugate(sqrt(1-x^2))-sqrt(1-x^2)

Not OK:

 (%i2) sign(%);
 (%o2) zero

This could be a conjugate bug, not a sign bug.

Barton

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