What is a closed-form number?
Article by Timothy Y. Chow
In collections: Notation and conventions, The act of doing maths
If a student asks for an antiderivative of exp(x^2), there is a standard reply: the answer is not an elementary function. But if a student asks for a closed-form expression for the real root of x = cos(x), there...
URL: arxiv.org/abs/math/9805045v1
PDF: arxiv.org/pdf/math/9805045v1
Entry: read.somethingorotherwhatever.

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