To see this version of mathsteps in action go to calculla.com. For example it's used in Sum of angles calculator, so you can put something like "1/3 pi" into alpha and beta angles and it will show you all steps needed to achieve "1/3 pi" result.
Mathsteps requires Node version > 6.0.0
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 result = mathsteps.solveEquation({
equationAsText: '2x + 3x = 35',
unknownVariable: 'x',
onStepCb: function(step) {
console.log(`[ ${step.equation.getId()} ] ${step.stepId} | ${step.equation}`)
}
})(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;Hi! If you're interested in working on this, that would be super awesome! Learn more here: CONTRIBUTING.md.
First clone the project from github:
git clone https://github.com/socraticorg/mathsteps.git
cd mathsteps
Install the project dependencies:
npm ci
To execute tests for the library, install the project dependencies once:
npm ci
Then, the tests can be executed:
npm test