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Re: ArcSin[Sin[x]]

• To: mathgroup at christensen.cybernetics.net
• Subject: [mg2014] Re: ArcSin[Sin[x]]
• From: jburne at connix.com (John Burnette)
• Date: Thu, 14 Sep 1995 23:28:39 -0400
• Organization: Connix - The Connecticut Internet Exchange

In article <DEKnsy.AsC at wri.com>,
Jack Goldberg  <jackgold at math.lsa.umich.edu> wrote:
>
>	I am keenly interested in how one should
>handle  ArcSin[Sin[x]].  
<snip>
>
A wierd memory of mine is that my tenth grade trig book long ago created 
a Sin function, separate and appart from the sin function, by restricting 
the domain. Given mathematica's capitalization schemas, this is 
consistent.

I didn't understand the reference to Log[Exp[x]], it doesn't seem to be a 
parallel situation. In what cases is Log[Exp[x]]<>x ?