How to factor out a constant?

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Dec 14, 2021, 8:53:28 AM12/14/21

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In any expression, how to factor a constant (that doesn't depend on certain symbols)?

For example (-2xy+2).factor_function(x,y) should give 2, (1-xy).

as_coeff_mul doesn't work.

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Dec 14, 2021, 9:22:39 AM12/14/21

to sympy

Maybe factor_terms is what you want:

In [50]: factor_terms(-2*x*y + 2)
Out[50]: 2⋅(-x⋅y + 1)

--
Oscar

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