gemseo.problems.uncertainty.ishigami.functions module

The Ishigami function and its gradient.

compute_gradient(x)

Compute the gradient of the Ishigami function.

Parameters:

x (RealArray) -- The input value(s), shaped as (input_dimension,) or (n_values, input_dimension).

Returns:

The value(s) of the gradient of the Ishigami function, shaped as (input_dimension,) or (n_values, input_dimension).

Return type:

RealArray

compute_output(x)

Compute the output of the Ishigami function.

Parameters:

x (RealArray) -- The input value(s), shaped as (input_dimension,) or (n_values, input_dimension).

Returns:

The output value(s), either a float or an array shaped as (n_values,).

Return type:

float | RealArray