I would like to find a function $f$ such that $$ \left|\int_a^b f(x)\ dx \right| > \int_a^b |f(x)|\ dx $$ where the integral should be understand in the Riemann sense.
Of course, $f$ shouldn't be piecewise continuous.
2026-03-25 08:05:39.1774425939
Function not piecewise continuous
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