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Re: How do I force Log[Exp[x]]=x
Hi, there are so many ways Log[Exp[x]] // PowerExpand Simplify[Log[Exp[x]], Element[x, Reals]] FullSimplify[Log[Exp[x]], Element[x, Reals]] Regards Jens Bart Killam wrote: > > For real x, Log[Exp[x]]=x. For general complex x > Mathematical leaves this expression unevaluated. I > have tried Log[Exp[x/;Im[x]=0]], but this give a result > of 0. > > How do I tell Mathematica that I want the expression > simplied for real x ? Thanks for any help.