Matrix Max Norm

Problem

Compute the entrywise max norm of matrix A: the largest absolute entry.

||A||_max = max_ij |A[i][j]|

Hint

Flatten the matrix in your mind and take the largest absolute value.

case 1

in: [[[1,-7],[3,2]]]

expected: 7

case 2

in: [[[0,0],[0,0]]]

expected: 0

case 3

in: [[[1.5,-2.5]]]

expected: 2.5

case 4

in: [[[-4]]]

expected: 4

Starter codePython

def matrix_max_norm(A):
    # Your code here
    pass

4 test cases · run your code against them in the editor