des-js

des-js is a javascript library containing differential equation solvers; it follows the component pattern.

Deploying to gh-pages

When redeploying to gh-pages because of new code in the library, there are a couple of steps to follow

1. Run grunt build command. This will create a des-js.js and des-js.min.js file in the dist folder.
2. Copy this folder, and replace the contents of the dist folder on the gh-pages branch with it.
3. Commit and push to gh-pages.

API

chart

base

Basic implementation of d3fc's cartesian chart component for use in examples

multi

Basic implementation of d3fc's multi component for use in examples

util

arraySum

function(arrayOne, arrayTwo)

Returns the array of the pair-wise sum of the elements in the two arrays.

coordinatePair

function(x, y)

Returns an object wrapper around x and y for ease of plotting the data.

form

Set the form of the differential equation to be solved.

linearODE

.coefficients

Get/set the coefficients that multiply derivatives in the ODE, starting with the multiplier for the 0th derivative.

.inhomogenuity

Get/set the f(x) inhomogenous part of the ODE.

function(x)

Returns the evaulated value of the inhomogenuity and coefficients at the given x.

onestep

Onestep methods are used to solve first-order linear ODEs.

theta

Theta methods are a family of onestep methods with a variable parameter.

.parameter

Get/set the parameter for the onestep scheme. There are 3 special values; 0 gives the Backward Euler scheme, 1 gives the Euler scheme, and 0.5 gives the Midpoint scheme. It is initially set to 0.5

.y0

Get/set the value of y at start of xDomain.

.xDomain

Get/set the start and end values of x to solve in the range.

.h

Get/set the step-size of the solver.

.ode

Get/set the first-order linear ODE to solve.

function()

Returns the calculated solution as an array of coordinatePair objects