[Maxima-bugs] [ maxima-Bugs-708917 ] trigreduce(sin(x)^2/cos(x)^2)

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Bugs item #708917, was opened at 2003-03-24 10:34
Message generated for change (Settings changed) made by robert_dodier
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>Category: Lisp Core
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Stavros Macrakis (macrakis)
Assigned to: Nobody/Anonymous (nobody)
Summary: trigreduce(sin(x)^2/cos(x)^2)

Initial Comment:
trigreduce(sin(x)^2/cos(x)^2) => tan(x)^2

Shouldn't it return (1-cos(2*x))/(1+cos(2*x))?

For that matter, it would be nice if trigreduce(tan(x)^2) 
also did this, but the documentation of trigreduce 
explicitly says that it handles only sin's and cos's 
(unlike trigexpand, which handles trigs in general).  

On the other hand, Trigrat already does this.


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