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2025-02-12 17:59:29 +08:00

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Python

#! /usr/bin/env python3
from sympy import symbols, expand, factor
x, y = symbols('x y')
expr = x + 2*y
expanded_expr = expand(x*expr)
print(expanded_expr)
assert str(expanded_expr) == "x**2 + 2*x*y"
factored_expr = factor(expanded_expr)
print(factored_expr)
assert str(factored_expr) == "x*(x + 2*y)"