PIXELBANKv8.2.1
Menu
Sign In

Array Creator

EasyNumPy Arrays

Problem Statement

Create NumPy arrays using different methods.

Background

NumPy provides many ways to create arrays:

  • np.array([1, 2, 3]) - from list
  • np.zeros((m, n)) - array of zeros
  • np.ones((m, n)) - array of ones
  • np.arange(start, stop, step) - range
  • np.linspace(start, stop, num) - evenly spaced

Your Task

Write a function create_arrays(n) that returns a dictionary with different arrays.

Output Format

Return a dictionary with:

  • "zeros": n×n matrix of zeros (list of lists)
  • "ones": n×n matrix of ones (list of lists)
  • "range": Array from 0 to n-1 (list)
  • "identity": n×n identity matrix (list of lists)

Example:

Input:
n = 3
Output:
{'zeros': [[0.0, 0.0, 0.0], ...], 'ones': [[1.0, ...], ...], ...}
Reasoning:

np.zeros((3,3)), np.ones((3,3)), np.arange(3), np.eye(3)

Constraints:

  • Use np.zeros, np.ones, np.arange, np.eye
  • Convert to lists using .tolist()
Editor

Test Results

0/0
Run code to see test results.