how to apply a vectorized custom function on two 2d arrays code example

Example 1: unity multiply xyz of two vectors

// Calculate the two vectors generating a result.
// This will compute Vector3(2, 6, 12)using UnityEngine;
using System.Collections;public class ExampleClass : MonoBehaviour
{
    void Example()
    {
        print(Vector3.Scale(new Vector3(1, 2, 3), new Vector3(2, 3, 4)));
    }
}

Example 2: resize two dimensional vector c++

//vector<vector<int>> M;
//int m = number of rows, n = number of columns;
M.resize(m, vector<int>(n));