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/** * Create a new column x row matrix. * * @private * @param {number} columns * @param {number} rows * @return {Array<Array<number>>} matrix * @example * makeMatrix(10, 10); */function makeMatrix(columns, rows) {    const matrix = [];    for (let i = 0; i < columns; i++) {        const column = [];        for (let j = 0; j < rows; j++) {            column.push(0);        }        matrix.push(column);    }    return matrix;}
export default makeMatrix;