How to use the det function from mathjs

4.js

GitHub: hakatashi/esolang-battle

33
34
35
36
37
38
39
40
41
42
43
	3,
);


const getDeterminant = (vectors) => {
	const [A, B, C, D] = vectors;
	return math.det([
		math.subtract(B, A),
		math.subtract(C, A),
		math.subtract(D, A),
	]);

11

12

0

CramerRule.js

GitHub: Geronimo-Yowzah/Project-React

76
77
78
79
80
81
82
83
84
85
var j=0;
var A1,dA;
var X1 = [];
do{
    A1 = copyMatrix(A);
    dA = math.det(A);
    if(dA != 0){
        for(var i=0; i < A1.length ; i++){
            A1[i][j] = B[i];
        }

0

1

0

jacobi.js

GitHub: DanielHernandezO/NumericalMethodsProject

23
24
25
26
27
28
29
30
31
32
33
}


export default  (A,b,x,iter,tol) =>{
    const logs = [];
	const iteration = [];
	let determinante = mathjs.det(A);
	if(determinante === 0){
        logs.push({
            type: 'Error',
            text: 'The determinant is zero, the problem has no unique solution.'

1

0

0

gaussseidel.js

GitHub: DanielHernandezO/NumericalMethodsProject

17
18
19
20
21
22
23
24
25
26
27
	} 
	return aux;
}


module.exports = (A,b,x,iter,tol) =>{
	determinante = mathjs.det(A);
	if(determinante === 0){
		console.log('El determinante es cero, el problema no tiene solución única');
		return;
	}

1

0

0

cramer.js

GitHub: Phochara/Numerpro

82
83
84
85
86
87
88
89
90
91
var a = math.matrix(A);
var b = math.matrix(B);
for (let i = 0; i < a.size()[0]; i++) {
  data["x"].push(
    math.round(
      math.det(
        math.subset(
          a,
          math.index(math.range(0, a.size()[0]), i),
          math.subset(b, math.index(math.range(0, a.size()[0]), 0))

0

0

0

matrix.js

GitHub: vinodkumarCortracker/MathServerAPI-s

17
18
19
20
21
22
23
24
25
26
27
28


router.post('/det', (req, res) => {
    try {
        
        let matrx = req.body.matrix
        let result = det(matrx)


        res.send({ result }) 
    } catch (err) {
        res.send(err.message)

0

0

0

renderer.js

GitHub: dunghoi1803/web2

50
51
52
53
54
55
56
57
58
59
const matrix_XtX = math.matrix(matrix1);

const matrix2 = [sum_Yi, sum_XiYi, sum_YiZi];
const matrix_XtY = math.matrix(matrix2);

const det = math.det(matrix_XtX);

const inverse = (m) => {
  return math.inv(m);
};

0

0

0

+ 3 other calls in file

HillFunctions.js

GitHub: JuanLara18/MadameX

28
29
30
31
32
33
34
35
36
37
38
39


let validateMatrix = (matrix, modn = 26) => {
    //depends on function factors
    // to prove that modn wont be needed here


    let det = math.det(math.mod(matrix, modn))
    let factors = factArray(modn)
    if (det % modn == 0) {
        {
            console.error("non valid matrix, zero determinant")

0

0

0

+ 3 other calls in file

hillCipher.js

GitHub: OrghoN/hillCipher

28
29
30
31
32
33
34
35
36
37
38
    while (det === 0) {
        encodingKey = math.random([n, n], 1, max);
        encodingKey = math.map(encodingKey, function(val) {
            return math.round(val);
        });
        det = math.det(encodingKey);
    }


    return math.matrix(encodingKey);
}

0

0

0

+ 5 other calls in file