JSPM – mathsteps@0.2.0

Package Exports

mathsteps

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (mathsteps) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

A step by step solver for math

https://www.youtube.com/watch?v=iCrargw1rrM

Requirements

Mathsteps requires Node version > 6.0.0

Usage

To install mathsteps using npm:

npm install mathsteps

const mathsteps = require('mathsteps');

const steps = mathsteps.simplifyExpression('2x + 2x + x + x');

steps.forEach(step => {
    console.log("before change: " + step.oldNode.toString());   // before change: 2 x + 2 x + x + x
    console.log("change: " + step.changeType);                  // change: ADD_POLYNOMIAL_TERMS
    console.log("after change: " + step.newNode.toString());    // after change: 6 x
    console.log("# of substeps: " + step.substeps.length);      // # of substeps: 3
});

To solve an equation:

const steps = mathsteps.solveEquation('2x + 3x = 35');

steps.forEach(step => {
    console.log("before change: " + step.oldEquation.ascii());  // e.g. before change: 2x + 3x = 35
    console.log("change: " + step.changeType);                  // e.g. change: SIMPLIFY_LEFT_SIDE
    console.log("after change: " + step.newEquation.ascii());   // e.g. after change: 5x = 35
    console.log("# of substeps: " + step.substeps.length);      // e.g. # of substeps: 2
});

(if you're using mathsteps v0.1.6 or lower, use .print() instead of .ascii())

To see all the change types:

const changes = mathsteps.ChangeTypes;

Contributing

Hi! If you're interested in working on this, that would be super awesome! Learn more here: CONTRIBUTING.md.

Build

First clone the project from github:

git clone https://github.com/socraticorg/mathsteps.git
cd mathsteps

Install the project dependencies:

npm install

Test

To execute tests for the library, install the project dependencies once:

npm install

Then, the tests can be executed:

npm test