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Get the Integrate[1-Erf[1]^2-E^(-Sec[t]^2),{t,0,Pi/4}] ?

Posted 5 years ago

Consider the following code:

Integrate[1-Erf[1]^2-E^(-Sec[t]^2),{t,0,Pi/4}]

returns itself and N[...] returns -7.730361489821647*^-17, while it's actually zero as can be proved. Will WolframAlpha and Machematica support such kind of thing?

POSTED BY: 123 345

NIntegrate is a numerical function. It's not expected to return an exact answer. Integrate is not able to do all integrals.

POSTED BY: Frank Kampas
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