SymPy Gamma

SymPy:

integrate (2*x+y,(x,1,3),(y,2,4))

$\int\limits_{2}^{4}\int\limits_{1}^{3} \left(2 x + y\right)\, dx\, dy$

integrate(2*x + y, (x, 1, 3), (y, 2, 4))

len(str(28))

factorint(28, limit=100)

factorint(28, limit=256)

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