gradient# class pinnx.grad.gradient(fn, xs, y=None, *xi, order=1)[source]# Compute the gradient dy/dx of a function y = f(x) with respect to x. If order is 1, it computes the first derivative dy/dx. Parameters: fn (Callable) – Function to compute the gradient. xs (Dict) – Inputs of the function. y (Union[str, Sequence[str], None]) – The variable to differentiate. xi (Union[str, Sequence[str], None]) – The variable to differentiate with respect to. order (int) – The order of the gradient. Default is 1. Returns: dy/dx.