num_dual.second_partial_derivative
- num_dual.second_partial_derivative(f, x, y)
Calculate the second partial derivatives of a scalar, bivariate function.
Parameters
- fcallable
A scalar, bivariate function.
- xfloat
The value of the first variable.
- yfloat
The value of the second variable.
Returns
function value, first partial derivative w.r.t. x, first parital derivative w.r.t. y, and second partial derivative