module.exports = frob /** * Returns Frobenius norm of a mat3 * * @alias mat3.frob * @param {mat3} a the matrix to calculate Frobenius norm of * @returns {Number} Frobenius norm */ function frob(a) { return Math.sqrt( a[0]*a[0] + a[1]*a[1] + a[2]*a[2] + a[3]*a[3] + a[4]*a[4] + a[5]*a[5] + a[6]*a[6] + a[7]*a[7] + a[8]*a[8] ) }