cupy.linalg.tensorinv¶

cupy.linalg.tensorinv(a, ind=2)[source]¶

Computes the inverse of a tensor.

This function computes tensor a_inv from tensor a such that tensordot(a_inv, a, ind) == I, where I denotes the identity tensor.

Parameters:	a (cupy.ndarray) – The tensor such that `prod(a.shape[:ind]) == prod(a.shape[ind:])`. ind (int) – The positive number used in `axes` option of `tensordot`.
Returns:	The inverse of a tensor whose shape is equivalent to `a.shape[ind:] + a.shape[:ind]`.
Return type:	cupy.ndarray