Let f(x)= $\int e^{-x^2}dx$
Is there any way to calculate the value of f(z) for any real number z? For example f(1), f(2.3), f(-3), etc.?
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2Do you mean rather, $f(x)=\int_{-\infty}^x e^{-u^2} du $? – Nap D. Lover Jun 26 '20 at 20:03
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Yes, there are many ways to compute (approximate) values. Look up error function. – Robert Israel Jun 26 '20 at 20:08