mathjs
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Math.js is an extensive math library for JavaScript and Node.js. It features a flexible expression parser with support for symbolic computation, comes with a large set of built-in functions and constants, and offers an integrated solution to work with dif
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JavaScript
export var subsetDocs = {
name: 'subset',
category: 'Matrix',
syntax: ['value(index)', 'value(index) = replacement', 'subset(value, [index])', 'subset(value, [index], replacement)'],
description: 'Get or set a subset of the entries of a matrix or ' + 'characters of a string. ' + 'Indexes are one-based. There should be one index specification for ' + 'each dimension of the target. Each specification can be a single ' + 'index, a list of indices, or a range in colon notation `l:u`. ' + 'In a range, both the lower bound l and upper bound u are included; ' + 'and if a bound is omitted it defaults to the most extreme valid value. ' + 'The cartesian product of the indices specified in each dimension ' + 'determines the target of the operation.',
examples: ['d = [1, 2; 3, 4]', 'e = []', 'e[1, 1:2] = [5, 6]', 'e[2, :] = [7, 8]', 'f = d * e', 'f[2, 1]', 'f[:, 1]', 'f[[1,2], [1,3]] = [9, 10; 11, 12]', 'f'],
seealso: ['concat', 'det', 'diag', 'identity', 'inv', 'ones', 'range', 'size', 'squeeze', 'trace', 'transpose', 'zeros']
};