I have the following system of equations
我有以下方程组
from sympy.abc import x,y,z
from sympy import solve, Eq
eqs = [Eq(x,y), Eq(y,z)]
result = solve(eqs, x)
now I want to be able to substitute a value for z and evaluate for x. how can I do that?
现在我希望能够替换z的值并为x求值。我怎样才能做到这一点？
1 个解决方案
#1
2
You should include the two variables that you want to solve for after eqs and then proceed something as follows:
您应该在eqs之后包含要解决的两个变量，然后执行以下操作：
>>> result = solve(eqs, x, y)
>>> result[x].subs(z,42)
42
#1
2
You should include the two variables that you want to solve for after eqs and then proceed something as follows:
您应该在eqs之后包含要解决的两个变量，然后执行以下操作：
>>> result = solve(eqs, x, y)
>>> result[x].subs(z,42)
42