node_modules/*

The MIT License (MIT)

Copyright (c) 2013 Mikola Lysenko

Permission is hereby granted, free of charge, to any person obtaining a copy

of this software and associated documentation files (the "Software"), to deal

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The above copyright notice and this permission notice shall be included in

all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

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ndarray-gradient

Computes the gradient of an ndarray using a 2-point central finite difference template.

var pack = require('ndarray-pack')

var pool = require('ndarray-scratch')

var grad = require('ndarray-gradient')

var show = require('ndarray-show')

var X = pack([[0, 0, 0],

[0, 1, 0],

[0, 0, 0]])

var dX = grad(pool.zero([3,3,2]), X)

console.log('grad(X) = \n', show(dX))

Output:

Computes the gradient of `src` storing the result into `dst`.

* `dst` is an array of gradient values. The shape of `dst` must be the shape of `src` with one additional dimension for the components of the gradient

* `src` is the array to differentiate

* `bc` is an array of boundary conditions. The boundary conditions are encoded as string values and must be one of the following values:

+ `'clamp'` (Default) clamp boundary edges to boundary

+ `'mirror'` mirror values across the boundary

+ `'wrap'` wrap values across boundary

**Returns** `dst`

(c) 2014 Mikola Lysenko. MIT License

var pack = require('ndarray-pack')

var pool = require('ndarray-scratch')

var grad = require('../fdg')

var show = require('ndarray-show')

var X = pack([[0, 0, 0],

[0, 1, 1],

[0, 0, 0]])

var dX = grad(pool.zeros([3,3,2]), X, 'wrap')

console.log('X = \n', show(X))

console.log('grad(X) = \n', show(dX))