How To Flip Numpy Array Along The Diagonal Efficiently?

Lets say that i have the following array (note that there is a 1 in the [2,0] position and a 2 in the [3,4] position): [0, 0, 0, 0, 0] [0, 0, 0, 0, 0] [1, 0, 0, 0, 0] [0, 0, 0, 0,

Solution 1:

Both np.rot90(np.fliplr(x)) and transposing the array solves this.

a = np.random.uniform(size=(5,5))
a.T == np.rot90(np.fliplr(a))