laplacian(f)
Returns the Laplacian of function f in Cartesian coordinates. Function f maps Rn into R.
See also partial divergence jacobian curl
Example
f(x1,x2,x3)=sin(x1)*x2*x3^3
f(x1,x2,x3)=sin(x1)*x2*x3^3
L=laplacian(f)
L(x1, x2, x3) = 6*sin(x1)*x2*x3-sin(x1)*x2*x3^3