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Answer by Goofy for Why is Assuming[...] ignoring the assumption?
Assuming works by adding conditions to $Assumptions. Some functions make use of $Assumptions and some do not. Generally, it is explicitly mentioned in the documentation, if the function does apply...
View ArticleAnswer by azerbajdzan for Why is Assuming[...] ignoring the assumption?
a = {a1, a2, a3};Assuming[{a1^2 + a2^2 + a3^2 == 1}, ComplexExpand[Exp[I*Pi*Norm[a]]] // FullSimplify]FullSimplify[ComplexExpand[Exp[I*Pi*Norm[a]]], Assumptions -> {a1^2 + a2^2 + a3^2 == 1}]-1-1
View ArticleWhy is Assuming[...] ignoring the assumption?
Let's say I want to compute a quantity like $e^{i \pi \vert \vec a \vert}$, and for a certain vector a = {a1,a2,a3} I assume it has length 1, so the quatity would be -1. My minimal example in...
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