Zero Vector Check

Problem

Check whether a vector is (numerically) the zero vector.

Return True if every entry has absolute value below 1e-9, and False otherwise. The empty vector counts as zero.

Hint

Use a small tolerance rather than exact equality.

case 1

in: [[0,0,0]]

expected: true

case 2

in: [[0,1e-10]]

expected: true

case 3

in: [[0,0.001]]

expected: false

case 4

in: [[]]

expected: true

case 5

in: [[1e-10,-1e-10,0]]

expected: true

Starter codePython

def zero_vector_check(v):
    # Your code here
    pass

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