Problem:
Find the jacobian of the vector valued function $\begin{pmatrix} f(x,y,z)\\ g(x,y,z) \\ h(x,y,z)\end{pmatrix}$ where $f(x,y,z) = \cos ^{-1}(x)$, $g(x,y,z) = \frac{x}{y}$, and $h(x,y,z) = \cos \left(\frac{x}{y}-z^2\right)$
from sympy import *
from sympy.abc import x, y, z

f = acos(x)
g = (x/y)
h = cos((x/y)-z**2)
X = Matrix([f, g, h]) 
print(X.jacobian((x, y, z)))
