cunumeric.vdot#

cunumeric.vdot(a: ndarray, b: ndarray, out: ndarray | None = None) → ndarray#

Return the dot product of two vectors.

The vdot(a, b) function handles complex numbers differently than dot(a, b). If the first argument is complex the complex conjugate of the first argument is used for the calculation of the dot product.

Note that vdot handles multidimensional arrays differently than dot: it does not perform a matrix product, but flattens input arguments to 1-D vectors first. Consequently, it should only be used for vectors.

Parameters:

a (array_like) – If a is complex the complex conjugate is taken before calculation of the dot product.
b (array_like) – Second argument to the dot product.
out (ndarray, optional) – Output argument. This must have the exact shape that would be returned if it was not present. If its dtype is not what would be expected from this operation, then the result will be (unsafely) cast to out.

Returns:

output – Dot product of a and b. If out is given, then it is returned.

Return type:

ndarray

Notes

The cuNumeric implementation is a little more liberal than NumPy in terms of allowed broadcasting, e.g. vdot(ones((1,)), ones((4,))) is allowed.