Python solve equation for one variable

Question

I\'m trying to solve an equation in python using SymPy. I have a generated equation (something like function = y(8.0-(y**3.0)) which I use with SymPy to create a ne

Answer 1

For nonlinear equations, you should use sympy.solvers.nsolve to solve it numerically, except for some special cases where a more specific and appropriate solver may exist (e.g. tsolve).

For example, the following script should output 1.2667664310254.

from sympy import Symbol
from sympy.solvers import nsolve
from sympy import sin, tan

theta = Symbol('theta')
print nsolve(tan(theta)/(1+1*sin(theta)) - 4.0**2/9.81, theta, (1.2,))