Closed
Description
Matrix vector multiplication isn't working in ulab on the following version:
Adafruit CircuitPython 6.1.0 on 2021-01-21; Adafruit Grand Central M4 Express with samd51p20
Here is an example of it's current functionality:
import ulab as np
A = np.eye(3)
B = np.array([1,2,3.0])
# the following two lines don't work
C = np.linalg.dot(A,B) # ValueError: matrix dimensions do not match
C = np.linalg.dot(A,B.transpose()) # ValueError: matrix dimensions do not match
# this does work, but the resulting array C is a 2D column vector
C = np.linalg.dot(A,B.reshape((3,1)))
C = C.flatten() # flatten to 1D vector
Ideally, this would work similarly to NumPy where a 2D array multiplied by a 1D array results in a 1D array. Does this functionality exist under a different function? Thank you.