Home

Index

How to use the sqrt function from mathjs

Find comprehensive JavaScript mathjs.sqrt code examples handpicked from public code repositorys.

mathjs.sqrt is a function that computes the square root of a number or an array of numbers.

quantum-circuit.js

4455
4456
4457
4458
4459
4460
4461
4462
4463
4464

if(value) {
	if(prob == 0) {
		U[1][0] = 1;
	} else {
		U[1][1] = math.sqrt(1 / prob);
	}
} else {
	if(prob == 0) {
		U[0][1] = 1;

207

+ 315 other calls in file

custom-functions.js

GitHub: KyleDerEchte/complex-function-plotter

6
7
8
9
10
11
12
13
14
15
const cdiv = math.divide;
const cmul = math.multiply;
const csin = math.sin;
const cexp = math.exp;
const clog = math.log;
const csqrt = math.sqrt;
const cpow = math.pow;
const csquare = z => cmul(z, z);

const gamma_right = math.gamma;

+ 15 other calls in file

How does mathjs.sqrt work?

mathjs.sqrt is a function provided by the Math.js library that returns the positive square root of a given number, or the square root of each element of an array or matrix if passed as an argument. If a negative number is passed as the argument, the function will return the complex square root of that number.

README-zh.md?plain=1

GitHub: nshen/math-as-code

149
150
151
152
153
154
155
156
157
158
var math = require('mathjs')

var a = math.complex(3, -1)
//=> { re: 3, im: -1 }

var b = math.sqrt(-1)
//=> { re: 0, im: -1 }

console.log(math.multiply(a, b).toString())
//=> '1 + 3i'

+ 13 other calls in file

custom-functions.js

GitHub: wgxli/complex-function-plotter

113
114
115
116
117
118
119
120
121
function erf_large(z) {
    const k = cmul_i(creciprocal(z));
    const k2 = csquare(k);
    const corrections = cdiv(
        cmul(k, cadd(1, cmul(k2, cadd(0.5, cmul(0.75, k2))))),
        math.sqrt(Math.PI)
    );
    return cadd(1, cmul_i(cmul(cexp(csquare(cmul_i(z))), corrections)));
}

+ 7 other calls in file

Ai Example

1
2
3
4
5
6
const math = require("mathjs");

const num = 25;
const sqrtNum = math.sqrt(num);

console.log(sqrtNum); // Output: 5

In this example, we first import the mathjs library using require. We then define a variable num with the value of 25, and use math.sqrt to find its square root, which is assigned to the variable sqrtNum. Finally, we log the value of sqrtNum to the console, which should output 5.

getting_started.md?plain=1

GitHub: plotly/mathjs

44
45
46
47
48
49
50
51
52
53
  <script src="math.js" type="text/javascript"></script>
</head>
<body>
  <script type="text/javascript">
    // use math.js
    math.sqrt(-4); // 2i
  </script>
</body>
</html>
```

+ 15 other calls in file

DeepGaze.js

GitHub: asilvas/salient-maps

166
167
168
169
170
171
172
173
174

  const uniquePixelsPow = pow(uniquePixelsSub, 2);

  const colorDifferenceMatrix = uniquePixelsPow.map(row => row.map(col => math.sum(col)));

  this.colorDistanceMatrix = math.sqrt(colorDifferenceMatrix);

  this.exponentialColorDistanceMatrix = math.exp(math.multiply(math.divide(colorDifferenceMatrix, (2 * sigmac * sigmac)), -1));
}

npm.html

GitHub: WasmEdge/www

162
163
164
165
166
167
168
169
170
171
<p>With <a href="https://rollupjs.org/guide/en/">rollup.js</a>, we can run CommonJS (CJS) and NodeJS (NPM) modules in WasmEdge too. The <a href="https://github.com/second-state/wasmedge-quickjs/blob/main/example_js/simple_common_js_demo/npm_main.js">simple_common_js_demo/npm_main.js</a> demo shows how it works. It utilizes the third-party <code>md5</code> and <code>mathjs</code> modules.</p>
<pre><code class="language-javascript">const md5 = require('md5');
console.log('md5(message)=', md5('message'));

const {sqrt} = require('mathjs');
console.log('sqrt(-4)=', sqrt(-4).toString());
</code></pre>
<p>In order to run it, we must first use the <a href="https://rollupjs.org/guide/en/">rollup.js</a> tool to build all dependencies into a single file. In the process, <code>rollup.js</code> converts CommonJS modules into <a href="es6.html">WasmEdge-compatible ES6 modules</a>. The build script is <a href="https://github.com/second-state/wasmedge-quickjs/blob/main/example_js/simple_common_js_demo/rollup.config.js">rollup.config.js</a>.</p>
<pre><code class="language-javascript">const {babel} = require('@rollup/plugin-babel');
const nodeResolve = require('@rollup/plugin-node-resolve');

Ect-solution.js

GitHub: farisnafiah/ECT-calculator

50
51
52
53
54
55
56
57
58
let oros = maths.chain(jx).dotDivide(q).dotDivide(maths.dotPow(bes, 2)).done();

const j2 = maths.complex('i');
var dz = [];
for (var i = 0; i < this.f.length; i++) {
  var p2 = maths.sqrt(maths.chain(q)
                .dotMultiply(q)
                .add(maths.dotMultiply(j2,omega[i]*Math.PI*4.0e-7*this.mr2*this.con2))
                .done());

+ 3 other calls in file

index.js

GitHub: jly36963/notes

41
42
43
44
45
46
47
48
49
50
math.log(a) // ln
math.log(a, 2) // log base 2
math.mod(a, b) // modulus (remainder)
math.multiply(a, b) // multiply
math.pow(a, b) // a ** b
math.sqrt(a) // square root
math.subtract(a, b) // subtract

// abs
math.abs(a); // absolute value

+ 6 other calls in file

math-generator.js

GitHub: git9527/children-helper

46
47
48
49
50
51
52
53
54
55
  return this.findAllDivisorsLessThan(source, source)
}

static findAllDivisorsLessThan(source, target) {
  let numbers = []
  let sqrt = math.sqrt(source)
  for (let i = 1; i < sqrt; i++) {
    if (source % i === 0) {
      if (source / i <= target) {
        numbers.push(source / i)

math.js

GitHub: calculi-io/guide-rails-demo-noderest-javascript-nodejs

22
23
24
25
26
27
28
29
30
31
	}
	return a / b
}

sqrt(a) {
	return sqrt(a)
}

cbrt(a) {
	return cbrt(a)

GE.js

GitHub: jmmcd/GEjs

505
506
507
508
509
510
511
512
513
514
515
516
	const z = math.subtract(x, y);
	return RMS(z);
}


function RMS(x) {
	return math.sqrt(math.sum(math.square(x)));
}	


function sr_quartic(s) {
    // notice using math.js evaluate we can use +, -

+ 2 other calls in file

math.js

GitHub: calculi-io/guide-rails-demo-restapi-javascript-nodejs

21
22
23
24
25
26
27
28
29
30
                return NaN
        }
        return a / b
}

sqrt(a) {
        return sqrt(a)
}

cbrt(a) {

demo.js

GitHub: xiefengnian/js-ml

112
113
114
115
116
117
118
119
120
  },
  {
    'b': [0, 0],
    'w': [
      -math.sqrt(6 / (dimension[0] + dimension[1])),
      math.sqrt(6 / (dimension[0] + dimension[1]))
    ]
  }
];

Cppn.js

GitHub: brin-eris/basic-bots

166
167
168
169
170
171
172
173
174
175
  let result = ( Mathjs.exp(-1 * x*x));

  return isNaN(result) ? 1.0 : result;
}
let sqrRoot = function (x){
  let result = Mathjs.sqrt(x);
    return isNaN(result) ? 1.0 : result;
}
let exp = function(x){
  let result = Mathjs.exp(x);

+ 7 other calls in file

Conjugate.js

GitHub: Geronimo-Yowzah/Project-React

197
198
199
200
201
202
203
204
205
206
var Ap = math.multiply(A, p);
var alpha = rsold / math.dot(p, Ap);
x = math.add(x, math.multiply(alpha, p));
r = math.subtract(r, math.multiply(alpha, Ap));
var rsnew = math.dot(r, r);
var er = math.sqrt(rsnew);
err.push(er);
console.log(x);
console.log(math.flatten(x));
if(Sizematrix == 2){

projectilemotion.js

GitHub: Thanatoslayer6/PhysicsDiscordBot

63
64
65
66
67
68
69
70
71
72
this.height.actual = unit(this.height.actual)
this.height.rounded = clone(this.height.actual);
this.height.rounded.value = SigFig(this.height.rounded.value, this.roundToSigFig) 
// First find final velocity (vf) where formula is: d = \frac{vf^{2} - vi^{2}}{2g}
// Derived formula is: \sqrt{vi^{2} + 2gd} = vf
this.finalVelocity.actual = sqrt(add(square(this.initialVelocity.actual), multiply(multiply(2, gravity), this.height.actual)))
this.finalVelocity.rounded = clone(this.finalVelocity.actual);
this.finalVelocity.rounded.value = SigFig(this.finalVelocity.rounded.value, this.roundToSigFig) 
this.equationInLatex.push(`v_{f} = \\sqrt{{v_{i}}^{2} - 2gd} \\implies \\sqrt{(${this.initialVelocity.actual.toString()})^{2} - 2(${gravity.toString()})(${this.height.actual.toString()})} = ${this.finalVelocity.rounded.toString()}`)
// Next find the time (use the computed final velocity)

+ 10 other calls in file

solver.js

GitHub: AppleGamer22/HyperCubeProject

60
61
62
63
64
65
66
67
68
69
}
map(func) {
    return new Point(func(this.x), func(this.y));
}
get magntitude() {
    return math.sqrt(math.add(math.pow(this._x, "2"), math.pow(this._y, "2")));
}
get array() {
    return [this._x, this._y];
}

server.js

GitHub: vfp2/mindfind-backend

107
108
109
110
111
112
113
114
115
116

let nl = 9; // Number of Lines multiplier
let N = 4999; // number of steps in a random walk per stage: (8 * nl)^2 +1 to make the number odd
let numStages = nl + 1; // TODO: confirm how this differs to nl...
let entropyBytesLen = math.ceil((N * numStages)/8); // byte size of total number of MMI bits to get from the QRNG
let stddev = math.sqrt(N);
let resolution = 35906101; // total number of crawled URLs to find an index in

axios
.get(`http://medfarm.fp2.dev:3333/api/randbytes?deviceId=QWR4E002&length=${entropyBytesLen}`, {responseType: 'arraybuffer'})

+ 5 other calls in file

index.js

GitHub: Divya565/NodejsRepo

53
54
55
56
57
58
59
60
61
62
63
//.....................sqrt...........................//
app.get('/app/sqrt/:num1', async (req, res, next) => {
    res.send(


        {
            sqrt: sqrt(Number(req.params.num1))
        }
    )
});

+ 2 other calls in file

Other functions in mathjs

Sorted by popularity

mathjs.evaluate is the most popular function in mathjs (87200 examples)

Other popular packages:

Home

About