Sun 2018-02-11 21:55:14 UTC, Andrey Novoseltsev:
> I got this bug report and it seems that I have seen something similar
> in the past but can't find it. Is it already known/tracked?
> show(integral(abs(sin(pi*x)), x, 0, 1))
> plot(abs(sin(pi*x)), 0, 1)
> The value of the integral is incorrectly returned as 0. (As expected,
> numerical integration has no issue handling this function.)
This might be related to:
- Sage #17511: Get integral of abs(sin(x)) and abs(cos(x)) right
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