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    mathleet
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    0.1.0 • Public • Published

    🧮 mathleet

    npm NPM npm

    Library of helpful math utilities.

    Install

    Via npm

    npm install mathleet

    Via Yarn

    yarn add mathleet

    How to use

    import { keySum } from 'mathleet'
    
    const values = [
      { a: 0, b: 1},
      { a: 1, b: 2},
      { a: 2, b: 3},
    ]
    
    const sumA = keySum(values, 'a')
    
    console.log(sumA)  // Output: 3
    
    const sumB = keySum(values, 'b')
    
    console.log(sumB)  // Output: 6

    Available methods

    Method Params Description
    filterNumbers (items: any[]) Accepts an array of inputs and converts them to numbers and filters out all NaN entries.
    keySum (items: any[], key: string) Accepts an array of objects and calculates the sum value for provided key.
    keyAvg (items: any[], key: string) Accepts an array of objects and calculates the avergage for the provided key.
    numMin (items: any[]) Takes an array of values and filters valid numbers, returning the Math.min.
    numMax (items: any[]) Takes an array of values and filters valid numbers, returning the Math.max.
    sum (items: any[], offset: number = 0) Takes an array of values, and optional offset, and calculates sum of values with offset applied.
    sumAvg (items: any[], offset: number = 0) Takes an array of values and calculates the average, with offset applied to sum before divided by items length.
    rangeAvg (items: any[], rangeMin: number = 0, 'rangeMax: number = 1`) Takes an array of values and calculates the average within a specified range.
    within (value: number, target: number, offset: number = 0) Takes a value and target and returns a boolean if is within the target range with the provided offset.
    outside (value: number, target: number, offset: number = 0) Takes a value and target and returns a boolean if values is outside the target range with the provided offset.
    degrees (value: number) Convert value of radians to degrees.
    radians (value: number) Convert value of degrees to radians.
    angle (pointA: Point, pointB: Point, pointC: Point) Takes three Point ({ x: number, y: number }) values and calculates the angle between them.
    velocity (distance: number, time: number) Takes a distance value and time and returns the calculated velocity.

    License

    MIT © Ryan Hefner

    Install

    npm i mathleet

    DownloadsWeekly Downloads

    14

    Version

    0.1.0

    License

    MIT

    Unpacked Size

    29.9 kB

    Total Files

    12

    Last publish

    Collaborators

    • ryanhefner