value_and_grad

ivy.value_and_grad(func)

Create a function that evaluates both func and the gradient of func.

Parameters:

func (Callable) – Function for which we compute the gradients of the output with respect to xs input.

Return type:

Callable

Returns:

ret – A function that returns both func and the gradient of func.

Examples

With ivy.Array input:

>>> x = ivy.array([[4.6, 2.1, 5], [2.8, 1.3, 6.2]])
>>> func = lambda x: ivy.mean(ivy.square(x))
>>> grad_fn = ivy.value_and_grad(func)
>>> value_grad = grad_fn(x)
>>> print(value_grad)
(ivy.array(16.423332), ivy.array([[1.53, 0.7, 1.67], [0.933, 0.433, 2.07]]))