cobyqa.models.Models.fun_alt_grad#
- Models.fun_alt_grad(x)[source]#
Evaluate the gradient of the alternative quadratic model of the objective function at a given point.
- Parameters:
- x
numpy.ndarray, shape (n,) Point at which to evaluate the gradient of the alternative quadratic model of the objective function.
- x
- Returns:
numpy.ndarray, shape (n,)Gradient of the alternative quadratic model of the objective function at x.
- Raises:
numpy.linalg.LinAlgErrorIf the interpolation system is ill-defined.