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ax-calculator

v2.4.2

Published

Complex Math Calculator

Downloads

294

Readme

Last added feature

RegexValidator, you can use for validate inputs or form

const form = {
  name: RegexValidator.onlyLetters({ capitalize: true, length: { minvalue: 5, maxvalue: 30 } }),
  lastname: RegexValidator.onlyLetters({ capitalize: true, length: { minvalue: 5, maxvalue: 30 } }),
  phone: RegexValidator.onlyNumbers(),
  // if the email doesn't contains '@gmail.com' returns false
  email: RegexValidator.coincidence("@gmail.com", "@outlook.com"),
  address: RegexValidator.onlyLettersAndNumbers({ capitalize: true, allowSpacing: true }),
  // is obligatory to have only 2 values, 3 or 1 returns false
  age: RegexValidator.implicitLength(2) 
}

Instalation

npm

npm i ax-calculator

yarn

yarn add ax-calculator
  • Import / Require
//esm
import * as ax from 'ax-calculator'
import { ... } from 'ax-calculator

//cjs
const ax = require('ax-calculator')
const { ... } = require('ax-calculator')

Objects and their operations

Please be informed of every change that is made to this calculator, many more operations are being added that can help you and an example of use is given.

Basic Operations

  • Sum, substract, product, division, module, root, raise to, Chaining class
BasicOperations.sum(2, 5, 8, 4, 11) // { result: 30, toNegative: [Function: toNegative] }
BasicOperations.substract(304, 20, 51) // { result: 233, toNegative: [Function: toNegative] }
BasicOperations.product(35, 1, 9) // { result: 315, toNegative: [Function: toNegative] }
BasicOperations.division(25, 5) // 5.00
BasicOperations.module(40, 4) // 0
BasicOperations.root(1296, 4) // 6
BasicOperations.raiseTo(3, 5) // 243

const chaining = new BasicOperations.Chaining()

console.log(chaining.baseNumber(5).multiply(4).divide(2).value); // 10

Base

  • binary to base 10, to base
Base.toBase(20, 4) // -> 110
Base.binaryToBase10(1001) // -> 9

Fractions

  • Sum, substract, product, division, simplify, destructure
Fractions.sum(1,2,-4,6) // 1/2 + (-4/6) -> -1/6
Fractions.substract(-5,2,4,7) // -5/2 - 4/7 -> -43/14
Fractions.product(10,2,-5,4) // 10/2 * (-5/4) -> -25/4
Fractions.division(5,3,7,2) // (5/3)/(7/2) ->10/21
Fractions.simplify(154, 6) // 77/3
Fractions.destructure("12/5") // { top: '12', bottom: '5' }

Equations

  • Secoond degree
// 2x² - 3x + 3 = 0
Equations.secondDegree(2, -3, 3) // { x1: '3/4 + 𝓲√15/4' , x2: '3/4 - 𝓲√15/4'  }

Percentage

  • What percentage is, percentage of, percent from percent, total from percent
// What percentaje is 12 out of 30?
Percentage.whatPercentageIs(12, 30) // 40.00%

// How much is 7% of 39?
Percentage.percentageOf(7, 39) // 2.73

// If 30% is 10, then 60% is...
Percentage.percentFromPercent(30, 10, 60) // 20

// If 10% is 20, the total is...
Percentage.totalFromPercent(10, 20) // 200

Rule of three

  • Simple
RuleOfThree.simple("direct", 10, undefined, 60, 90) // 15

Triangles

  • Functions return information about triangles
Triangles.angle14_76()

/*
{
  hypotenuse: 'k√17',
  opposite: 'k',
  adjacent: '4k',
  sin: 'k/k√17',
  cos: '4k/k√17',
  tan: 'k/4k'
}
*/

Linear Regression

  • Simple
var array_x = [100, 90, 80, 45, 50, 50, 60, 40, 25, 20];
var array_y = [3, 5, 9, 10, 20, 21, 24, 24, 27, 35];

console.log(LinearRegression.simple(array_x, array_y));

//
/*
{
  a: -0.34788,
  b: 37.28128,
  equation: '-0.34788x + 37.28128',
  coefficient: [Function: coefficient]
}
*/

Area

  • Triangle, rectangle, circle, square, square2, trapeze
// ...
Area.triangle(4, 3) // 6
Area.circle(5) // 25π
// ...

Operations

  • Hypotenuse, to roman, log, factorial, double factorial, combinatorial, fibonacci, divisors
Operations.hypotenuse(7, 9) // -> √11.40
Operations.toRoman(420); // CDXX

// log5x = 4
Operations.log(5, null, 4) // 625

// 4!
Operations.factorial(4); // 24

// 10!!
Operations.doubleFactorial(10); // 3840
Operations.combinatorial(7, 3); // 35

Operations.divisors(25); // [ 1, 5, 25 ]

Operations.fibonacci(13)

/*
Output:

[
    0,  1,  1,  2,  3,  5,
    8, 13, 21, 34, 55, 89,
    144
]
*/

Vectors

  • Sum, Substract, Product, unit vector
// (3, 6) + (2, -7)
var vector_a = [3, 6];
var vector_b = [2, -7];

// Sum or sustract returns object
Vectors.sum(vector_a, vector_b)

/*
  {
    x: 5,
    y: -1,
    expression: '5i - 1j',
    cartesian: [ 5, -1 ],
    unit_vector: [ 0.98, -0.19 ]
  }
*/

// (2i - j) • (5i + 2j)
Vectors.product( [2, -1], [5, 2] ) // 8

// (-3, 5)
Vector.unitVector(-3, 5);

System of equations

  • Double
var equation1 = [1, 2, 10];
var equation2 = [2, -1, 5]

console.log(SystemEquation.double(equation1, equation2))
// { x: 4, y: 3 }

Chemical elements

  • Show, obtain by group, obtain by family
ChemicalElements.show("H")

/*
  {
    simbol: 'H',
    atomic_number: 1,
    atomic_mass: 1,
    name: 'Hydrogen',
    group: 'I A',
    type: 'Non-metal',
    electroegativity: 2.2
  }
*/

//  I A, II A, III A, ...
ChemicalElements.obtainByGroup("I B") // object

// You will place the family of the elements you want to obtain
ChemicalElements.obtainByFamily("Halogen") // object

Angle measurements system

  • Radian, Centesimal, Sexasegimal (toRadian, toCentesimal, toSexagesimal)
...

// 2π/5
AngleMeasurements.radian("2/5").toCentesimal() // 80

// 40ᵍ
AngleMeasurements.centesimal(40).toRadian() // π/5

// 45°
AngleMeasurements.sexagesimal(45).toCentesimal() // 50

...

Validator

  • isNumber, isString, isObject, isUndefined, containsString, containsNumber ...
...

Validator.isNumber("2") // false
Validator.isString("test") // true

Validator.containsString([1,2,3,4]) // false
Validator.containsNumber(["1", "2", "3", 4]) // true

...

Clock

  • date, time
Clock.time() // Sample: 23:10

// the default format is US
Clock.date() // month/day/year

Browser

  • setCSSVariable, getCSSVariable, getBrowserDetails, isMobile, getComputedStyleById
...

Browser.isMobile() // false

Browser.getComputedStyleById('main', 'margin-top') // 0px
Browser.getComputedStyleById('nav', 'border') // 2px solid rgb(123, 123, 123)

Browser.setCSSVariable('--myvariable', '4px')
Browser.getCSSVariable('--myvariable') // '4px'

...