4x + 3y + 3z = 350
4x + 2y + 5z = 360
8x + 8y + 10z = 840
from sympy import * x = Symbol('x') y = Symbol('y') z = Symbol('z') f1 = 4*x + 3*y + 3*z - 350 f2 = 4*x + 2*y + 5*z - 360 f3 = 8*x + 8*y + 10*z - 840 sol = solve((f1, f2, f3), x, y, z) pprint(sol) # OUT: {x: 50, y: 30, z: 20}
使用 evalf 將分數轉為小數輸出
ex.
4x2 + 5x - 6 = 0
from sympy import * x = Symbol('x') f = 4*x**2 + 5*x -6 sol = solve(f, x) pprint(sol) # OUT: [-2, 3/4] print sol[1].evalf() # OUT: 0.750000000000000
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