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| From: | Francois Maltey |
| Subject: | [Axiom-math] expand (cos (2*x)) |
| Date: | Tue, 31 May 2005 18:36:07 +0200 |
| User-agent: | Gnus/5.1006 (Gnus v5.10.6) XEmacs/21.5 (chestnut, linux) |
Hello, expand (cos (x+y)) is right. but how can I do expand (cos (2*x)) in cos(x)^2 - sin(x)^2 by example. And how can I get the source file of this expand ? Thanks a lot. François
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