enhancedmath/lib/Matrix/inverse.js

This package contains some enhanced mathematical operations

import { getDimensions, multiplyMatrix } from '../Helpers/index';
import cofactorMatrix from './cofactor';
import determinant from './determinant';
import transpose from './transpose';
/**
 * Calculates the inverse of a given matrix
 * @param matrix The matrix
 * @returns The inverse of the matrix
 */
const matrixInverse = (matrix) => {
    const { rows, cols } = getDimensions(matrix);
    if (rows !== cols) {
        return undefined;
    }
    const det = determinant(matrix);
    if (det === 0) {
        return undefined;
    }
    const cofactor = cofactorMatrix(matrix);
    // TODO: Clean this up
    const adjointMatrix = transpose(cofactor);
    return multiplyMatrix(adjointMatrix, 1 / det);
};
export default matrixInverse;