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@basementuniverse/commonjs

v1.2.10

Published

A collection of useful functions

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common.js

A small library of useful functions

Usage

Node:

const { vec, mat } = require('@basementuniverse/commonjs');

Browser:

<script src="common.js"></script>

Typescript:

import { vec, mat } from '@basementuniverse/commonjs';

Contents

Classes

Functions

Typedefs

Math

Kind: global class

Math.floatEquals(a, b, [p]) ⇒ boolean

Check if two numbers are approximately equal

Kind: static method of Math
Returns: boolean - True if numbers a and b are approximately equal

| Param | Type | Default | Description | | --- | --- | --- | --- | | a | number | | Number a | | b | number | | Number b | | [p] | number | Number.EPSILON | The precision value |

Math.clamp(a, [min], [max]) ⇒ number

Clamp a number between min and max

Kind: static method of Math
Returns: number - A clamped number

| Param | Type | Default | Description | | --- | --- | --- | --- | | a | number | | The number to clamp | | [min] | number | 0 | The minimum value | | [max] | number | 1 | The maximum value |

Math.frac(a) ⇒ number

Get the fractional part of a number

Kind: static method of Math
Returns: number - The fractional part of the number

| Param | Type | Description | | --- | --- | --- | | a | number | The number from which to get the fractional part |

Math.lerp(a, b, i) ⇒ number

Do a linear interpolation between a and b

Kind: static method of Math
Returns: number - An interpolated value in the interval [a, b]

| Param | Type | Description | | --- | --- | --- | | a | number | The minimum number | | b | number | The maximum number | | i | number | The interpolation value, should be in the interval [0, 1] |

Math.unlerp(a, b, i) ⇒ number

Get the position of i between a and b

Kind: static method of Math
Returns: number - The position of i between a and b

| Param | Type | Description | | --- | --- | --- | | a | number | The minimum number | | b | number | The maximum number | | i | number | The interpolated value in the interval [a, b] |

Math.blerp(c00, c10, c01, c11, ix, iy) ⇒ number

Do a bilinear interpolation

Kind: static method of Math
Returns: number - A bilinear interpolated value

| Param | Type | Description | | --- | --- | --- | | c00 | number | Top-left value | | c10 | number | Top-right value | | c01 | number | Bottom-left value | | c11 | number | Bottom-right value | | ix | number | Interpolation value along x | | iy | number | Interpolation value along y |

Math.remap(i, a1, a2, b1, b2) ⇒ number

Re-map a number i from range a1...a2 to b1...b2

Kind: static method of Math

| Param | Type | Description | | --- | --- | --- | | i | number | The number to re-map | | a1 | number | | | a2 | number | | | b1 | number | | | b2 | number | |

Math.smoothstep(a, b, i) ⇒ number

Do a smooth interpolation between a and b

Kind: static method of Math
Returns: number - An interpolated value in the interval [a, b]

| Param | Type | Description | | --- | --- | --- | | a | number | The minimum number | | b | number | The maximum number | | i | number | The interpolation value |

Math.radians(degrees) ⇒ number

Get an angle in radians

Kind: static method of Math
Returns: number - The angle in radians

| Param | Type | Description | | --- | --- | --- | | degrees | number | The angle in degrees |

Math.degrees(radians) ⇒ number

Get an angle in degrees

Kind: static method of Math
Returns: number - The angle in degrees

| Param | Type | Description | | --- | --- | --- | | radians | number | The angle in radians |

Math.randomBetween(min, max) ⇒ number

Get a random float in the interval [min, max)

Kind: static method of Math
Returns: number - A random float in the interval [min, max)

| Param | Type | Description | | --- | --- | --- | | min | number | Inclusive min | | max | number | Exclusive max |

Math.randomIntBetween(min, max) ⇒ number

Get a random integer in the interval [min, max]

Kind: static method of Math
Returns: number - A random integer in the interval [min, max]

| Param | Type | Description | | --- | --- | --- | | min | number | Inclusive min | | max | number | Inclusive max |

Math.cltRandom([mu], [sigma], [samples]) ⇒ number

Get a normally-distributed random number

Kind: static method of Math
Returns: number - A normally-distributed random number

| Param | Type | Default | Description | | --- | --- | --- | --- | | [mu] | number | 0.5 | The mean value | | [sigma] | number | 0.5 | The standard deviation | | [samples] | number | 2 | The number of samples |

Math.cltRandomInt(min, max) ⇒ number

Get a normally-distributed random integer in the interval [min, max]

Kind: static method of Math
Returns: number - A normally-distributed random integer

| Param | Type | Description | | --- | --- | --- | | min | number | Inclusive min | | max | number | Inclusive max |

Math.weightedRandom(w) ⇒ number

Return a weighted random integer

Kind: static method of Math
Returns: number - An index from w

| Param | Type | Description | | --- | --- | --- | | w | Array.<number> | An array of weights |

Math.lerpArray(a, i, [f]) ⇒ number

Return an interpolated value from an array

Kind: static method of Math
Returns: number - An interpolated value in the interval [min(a), max(a)]

| Param | Type | Default | Description | | --- | --- | --- | --- | | a | Array.<number> | | An array of values interpolate | | i | number | | A number in the interval [0, 1] | | [f] | interpolationCallback | Math.lerp | The interpolation function to use |

Math.dot(a, b) ⇒ number

Get the dot product of two vectors

Kind: static method of Math
Returns: number - a ∙ b

| Param | Type | Description | | --- | --- | --- | | a | Array.<number> | Vector a | | b | Array.<number> | Vector b |

Math.factorial(a) ⇒ number

Get the factorial of a number

Kind: static method of Math
Returns: number - a!

| Param | Type | | --- | --- | | a | number |

Math.permutation(n, r) ⇒ number

Get the number of permutations of r elements from a set of n elements

Kind: static method of Math
Returns: number - nPr

| Param | Type | | --- | --- | | n | number | | r | number |

Math.combination(n, r) ⇒ number

Get the number of combinations of r elements from a set of n elements

Kind: static method of Math
Returns: number - nCr

| Param | Type | | --- | --- | | n | number | | r | number |

Array

Kind: global class

array.at(i) ⇒ *

Return array[i] with positive and negative wrapping

Kind: instance method of Array
Returns: * - An element from the array

| Param | Type | Description | | --- | --- | --- | | i | number | The positively/negatively wrapped array index |

array.chunk(n) ⇒ Array.<Array.<*>>

Chop an array into chunks of size n

Kind: instance method of Array
Returns: Array.<Array.<*>> - An array of array chunks

| Param | Type | Description | | --- | --- | --- | | n | number | The chunk size |

array.shuffle() ⇒ Array.<*>

Randomly shuffle an array in-place

Kind: instance method of Array
Returns: Array.<*> - The shuffled array

Array.times(f, n) ⇒ Array.<*>

Return a new array with length n by calling function f(i) on each element

Kind: static method of Array

| Param | Type | Description | | --- | --- | --- | | f | timesCallback | | | n | number | The size of the array |

Array.range(n) ⇒ Array.<number>

Return an array containing numbers 0->(n - 1)

Kind: static method of Array
Returns: Array.<number> - An array of integers 0->(n - 1)

| Param | Type | Description | | --- | --- | --- | | n | number | The size of the array |

Array.zip(a, b) ⇒ Array.<Array.<*>>

Zip 2 arrays together, i.e. ([1, 2, 3], [a, b, c]) => [[1, a], [2, b], [3, c]]

Kind: static method of Array

| Param | Type | | --- | --- | | a | Array.<*> | | b | Array.<*> |

vec([x], [y]) ⇒ vec

Create a new vector

Kind: global function
Returns: vec - A new vector

| Param | Type | Description | | --- | --- | --- | | [x] | number | vec | The x component of the vector, or a vector to copy | | [y] | number | The y component of the vector |

Example (Various ways to initialise a vector)

let a = vec(3, 2);  // (3, 2)
let b = vec(4);     // (4, 4)
let c = vec(a);     // (3, 2)
let d = vec();      // (0, 0)

vec.components(a) ⇒ Array.<number>

Get the components of a vector as an array

Kind: static method of vec
Returns: Array.<number> - The vector components as an array

| Param | Type | Description | | --- | --- | --- | | a | vec | The vector to get components from |

vec.ux() ⇒ vec

Return a unit vector (1, 0)

Kind: static method of vec
Returns: vec - A unit vector (1, 0)

vec.uy() ⇒ vec

Return a unit vector (0, 1)

Kind: static method of vec
Returns: vec - A unit vector (0, 1)

vec.add(a, b) ⇒ vec

Add vectors

Kind: static method of vec
Returns: vec - a + b

| Param | Type | Description | | --- | --- | --- | | a | vec | Vector a | | b | vec | Vector b |

vec.mul(a, b) ⇒ vec

Scale a vector

Kind: static method of vec
Returns: vec - a * b

| Param | Type | Description | | --- | --- | --- | | a | vec | Vector a | | b | number | Scalar b |

vec.sub(a, b) ⇒ vec

Subtract vectors

Kind: static method of vec
Returns: vec - a - b

| Param | Type | Description | | --- | --- | --- | | a | vec | Vector a | | b | vec | Vector b |

vec.len(a) ⇒ number

Get the length of a vector

Kind: static method of vec
Returns: number - |a|

| Param | Type | Description | | --- | --- | --- | | a | vec | Vector a |

vec.manhattan(a) ⇒ number

Get the length of a vector using taxicab geometry

Kind: static method of vec
Returns: number - |a|

| Param | Type | Description | | --- | --- | --- | | a | vec | Vector a |

vec.nor(a) ⇒ vec

Normalise a vector

Kind: static method of vec
Returns: vec - ^a

| Param | Type | Description | | --- | --- | --- | | a | vec | The vector to normalise |

vec.dot(a, b) ⇒ number

Get a dot product of vectors

Kind: static method of vec
Returns: number - a ∙ b

| Param | Type | Description | | --- | --- | --- | | a | vec | Vector a | | b | vec | Vector b |

vec.rot(a, r) ⇒ vec

Rotate a vector by r radians

Kind: static method of vec
Returns: vec - A rotated vector

| Param | Type | Description | | --- | --- | --- | | a | vec | The vector to rotate | | r | number | The angle to rotate by, measured in radians |

vec.eq(a, b) ⇒ boolean

Check if two vectors are equal

Kind: static method of vec
Returns: boolean - True if vectors a and b are equal, false otherwise

| Param | Type | Description | | --- | --- | --- | | a | vec | Vector a | | b | vec | Vector b |

vec.rad(a) ⇒ number

Get the angle of a vector

Kind: static method of vec
Returns: number - The angle of vector a in radians

| Param | Type | Description | | --- | --- | --- | | a | vec | Vector a |

vec.cpy(a) ⇒ vec

Copy a vector

Kind: static method of vec
Returns: vec - A copy of vector a

| Param | Type | Description | | --- | --- | --- | | a | vec | The vector to copy |

vec.map(a, f) ⇒ vec

Call a function on each component of a vector and build a new vector from the results

Kind: static method of vec
Returns: vec - Vector a mapped through f

| Param | Type | Description | | --- | --- | --- | | a | vec | Vector a | | f | vectorMapCallback | The function to call on each component of the vector |

vec.str(a, [s]) ⇒ string

Convert a vector into a string

Kind: static method of vec
Returns: string - A string representation of the vector

| Param | Type | Default | Description | | --- | --- | --- | --- | | a | vec | | The vector to convert | | [s] | string | "', '" | The separator string |

mat([m], [n], [entries]) ⇒ mat

Create a new matrix

Kind: global function
Returns: mat - A new matrix

| Param | Type | Default | Description | | --- | --- | --- | --- | | [m] | number | 4 | The number of rows | | [n] | number | 4 | The number of columns | | [entries] | Array.<number> | [] | Matrix values in reading order |

mat.identity(n) ⇒ mat

Get an identity matrix of size n

Kind: static method of mat
Returns: mat - An identity matrix

| Param | Type | Description | | --- | --- | --- | | n | number | The size of the matrix |

mat.get(a, i, j) ⇒ number

Get an entry from a matrix

Kind: static method of mat
Returns: number - The value at position (i, j) in matrix a

| Param | Type | Description | | --- | --- | --- | | a | mat | Matrix a | | i | number | The row offset | | j | number | The column offset |

mat.set(a, i, j, v)

Set an entry of a matrix

Kind: static method of mat

| Param | Type | Description | | --- | --- | --- | | a | mat | Matrix a | | i | number | The row offset | | j | number | The column offset | | v | number | The value to set in matrix a |

mat.row(a, m) ⇒ Array.<number>

Get a row from a matrix as an array

Kind: static method of mat
Returns: Array.<number> - Row m from matrix a

| Param | Type | Description | | --- | --- | --- | | a | mat | Matrix a | | m | number | The row offset |

mat.col(a, n) ⇒ Array.<number>

Get a column from a matrix as an array

Kind: static method of mat
Returns: Array.<number> - Column n from matrix a

| Param | Type | Description | | --- | --- | --- | | a | mat | Matrix a | | n | number | The column offset |

mat.add(a, b) ⇒ mat

Add matrices

Kind: static method of mat
Returns: mat - a + b

| Param | Type | Description | | --- | --- | --- | | a | mat | Matrix a | | b | mat | Matrix b |

mat.sub(a, b) ⇒ mat

Subtract matrices

Kind: static method of mat
Returns: mat - a - b

| Param | Type | Description | | --- | --- | --- | | a | mat | Matrix a | | b | mat | Matrix b |

mat.mul(a, b) ⇒ mat | boolean

Multiply matrices

Kind: static method of mat
Returns: mat | boolean - ab or false if the matrices cannot be multiplied

| Param | Type | Description | | --- | --- | --- | | a | mat | Matrix a | | b | mat | Matrix b |

mat.scale(a, b) ⇒ mat

Scale a matrix

Kind: static method of mat
Returns: mat - a * b

| Param | Type | Description | | --- | --- | --- | | a | mat | Matrix a | | b | number | Scalar b |

mat.trans(a) ⇒ mat

Transpose a matrix

Kind: static method of mat
Returns: mat - A transposed matrix

| Param | Type | Description | | --- | --- | --- | | a | mat | The matrix to transpose |

mat.minor(a, i, j) ⇒ mat | boolean

Get the minor of a matrix

Kind: static method of mat
Returns: mat | boolean - The (i, j) minor of matrix a or false if the matrix is not square

| Param | Type | Description | | --- | --- | --- | | a | mat | Matrix a | | i | number | The row offset | | j | number | The column offset |

mat.det(a) ⇒ number | boolean

Get the determinant of a matrix

Kind: static method of mat
Returns: number | boolean - |a| or false if the matrix is not square

| Param | Type | Description | | --- | --- | --- | | a | mat | Matrix a |

mat.nor(a) ⇒ mat | boolean

Normalise a matrix

Kind: static method of mat
Returns: mat | boolean - ^a or false if the matrix is not square

| Param | Type | Description | | --- | --- | --- | | a | mat | The matrix to normalise |

mat.adj(a) ⇒ mat

Get the adjugate of a matrix

Kind: static method of mat
Returns: mat - The adjugate of a

| Param | Type | Description | | --- | --- | --- | | a | mat | The matrix from which to get the adjugate |

mat.inv(a) ⇒ mat | boolean

Get the inverse of a matrix

Kind: static method of mat
Returns: mat | boolean - a^-1 or false if the matrix has no inverse

| Param | Type | Description | | --- | --- | --- | | a | mat | The matrix to invert |

mat.eq(a, b) ⇒ boolean

Check if two matrices are equal

Kind: static method of mat
Returns: boolean - True if matrices a and b are identical, false otherwise

| Param | Type | Description | | --- | --- | --- | | a | mat | Matrix a | | b | mat | Matrix b |

mat.cpy(a) ⇒ mat

Copy a matrix

Kind: static method of mat
Returns: mat - A copy of matrix a

| Param | Type | Description | | --- | --- | --- | | a | mat | The matrix to copy |

mat.map(a, f) ⇒ mat

Call a function on each entry of a matrix and build a new matrix from the results

Kind: static method of mat
Returns: mat - Matrix a mapped through f

| Param | Type | Description | | --- | --- | --- | | a | mat | Matrix a | | f | matrixMapCallback | The function to call on each entry of the matrix |

mat.str(a, [ms], [ns]) ⇒ string

Convert a matrix into a string

Kind: static method of mat
Returns: string - A string representation of the matrix

| Param | Type | Default | Description | | --- | --- | --- | --- | | a | mat | | The matrix to convert | | [ms] | string | "', '" | The separator string for columns | | [ns] | string | "'\n'" | The separator string for rows |

interpolationCallback ⇒ number

An interpolation function

Kind: global typedef
Returns: number - The interpolated value in the interval [a, b]

| Param | Type | Description | | --- | --- | --- | | a | number | The minimum number | | b | number | The maximum number | | i | number | The interpolation value, should be in the interval [0, 1] |

timesCallback ⇒ *

A function for generating array values

Kind: global typedef
Returns: * - The array value

| Param | Type | Description | | --- | --- | --- | | i | number | The array index |

vec : Object

A 2d vector

Kind: global typedef
Properties

| Name | Type | Description | | --- | --- | --- | | x | number | The x component of the vector | | y | number | The y component of the vector |

vec.components(a) ⇒ Array.<number>

Get the components of a vector as an array

Kind: static method of vec
Returns: Array.<number> - The vector components as an array

| Param | Type | Description | | --- | --- | --- | | a | vec | The vector to get components from |

vec.ux() ⇒ vec

Return a unit vector (1, 0)

Kind: static method of vec
Returns: vec - A unit vector (1, 0)

vec.uy() ⇒ vec

Return a unit vector (0, 1)

Kind: static method of vec
Returns: vec - A unit vector (0, 1)

vec.add(a, b) ⇒ vec

Add vectors

Kind: static method of vec
Returns: vec - a + b

| Param | Type | Description | | --- | --- | --- | | a | vec | Vector a | | b | vec | Vector b |

vec.mul(a, b) ⇒ vec

Scale a vector

Kind: static method of vec
Returns: vec - a * b

| Param | Type | Description | | --- | --- | --- | | a | vec | Vector a | | b | number | Scalar b |

vec.sub(a, b) ⇒ vec

Subtract vectors

Kind: static method of vec
Returns: vec - a - b

| Param | Type | Description | | --- | --- | --- | | a | vec | Vector a | | b | vec | Vector b |

vec.len(a) ⇒ number

Get the length of a vector

Kind: static method of vec
Returns: number - |a|

| Param | Type | Description | | --- | --- | --- | | a | vec | Vector a |

vec.manhattan(a) ⇒ number

Get the length of a vector using taxicab geometry

Kind: static method of vec
Returns: number - |a|

| Param | Type | Description | | --- | --- | --- | | a | vec | Vector a |

vec.nor(a) ⇒ vec

Normalise a vector

Kind: static method of vec
Returns: vec - ^a

| Param | Type | Description | | --- | --- | --- | | a | vec | The vector to normalise |

vec.dot(a, b) ⇒ number

Get a dot product of vectors

Kind: static method of vec
Returns: number - a ∙ b

| Param | Type | Description | | --- | --- | --- | | a | vec | Vector a | | b | vec | Vector b |

vec.rot(a, r) ⇒ vec

Rotate a vector by r radians

Kind: static method of vec
Returns: vec - A rotated vector

| Param | Type | Description | | --- | --- | --- | | a | vec | The vector to rotate | | r | number | The angle to rotate by, measured in radians |

vec.eq(a, b) ⇒ boolean

Check if two vectors are equal

Kind: static method of vec
Returns: boolean - True if vectors a and b are equal, false otherwise

| Param | Type | Description | | --- | --- | --- | | a | vec | Vector a | | b | vec | Vector b |

vec.rad(a) ⇒ number

Get the angle of a vector

Kind: static method of vec
Returns: number - The angle of vector a in radians

| Param | Type | Description | | --- | --- | --- | | a | vec | Vector a |

vec.cpy(a) ⇒ vec

Copy a vector

Kind: static method of vec
Returns: vec - A copy of vector a

| Param | Type | Description | | --- | --- | --- | | a | vec | The vector to copy |

vec.map(a, f) ⇒ vec

Call a function on each component of a vector and build a new vector from the results

Kind: static method of vec
Returns: vec - Vector a mapped through f

| Param | Type | Description | | --- | --- | --- | | a | vec | Vector a | | f | vectorMapCallback | The function to call on each component of the vector |

vec.str(a, [s]) ⇒ string

Convert a vector into a string

Kind: static method of vec
Returns: string - A string representation of the vector

| Param | Type | Default | Description | | --- | --- | --- | --- | | a | vec | | The vector to convert | | [s] | string | "', '" | The separator string |

vectorMapCallback ⇒ number

A function to call on each component of a vector

Kind: global typedef
Returns: number - The mapped component

| Param | Type | Description | | --- | --- | --- | | value | number | The component value | | label | 'x' | 'y' | The component label (x or y) |

mat : Object

A matrix

Kind: global typedef
Properties

| Name | Type | Description | | --- | --- | --- | | m | number | The number of rows in the matrix | | n | number | The number of columns in the matrix | | entries | Array.<number> | The matrix values |

mat.identity(n) ⇒ mat

Get an identity matrix of size n

Kind: static method of mat
Returns: mat - An identity matrix

| Param | Type | Description | | --- | --- | --- | | n | number | The size of the matrix |

mat.get(a, i, j) ⇒ number

Get an entry from a matrix

Kind: static method of mat
Returns: number - The value at position (i, j) in matrix a

| Param | Type | Description | | --- | --- | --- | | a | mat | Matrix a | | i | number | The row offset | | j | number | The column offset |

mat.set(a, i, j, v)

Set an entry of a matrix

Kind: static method of mat

| Param | Type | Description | | --- | --- | --- | | a | mat | Matrix a | | i | number | The row offset | | j | number | The column offset | | v | number | The value to set in matrix a |

mat.row(a, m) ⇒ Array.<number>

Get a row from a matrix as an array

Kind: static method of mat
Returns: Array.<number> - Row m from matrix a

| Param | Type | Description | | --- | --- | --- | | a | mat | Matrix a | | m | number | The row offset |

mat.col(a, n) ⇒ Array.<number>

Get a column from a matrix as an array

Kind: static method of mat
Returns: Array.<number> - Column n from matrix a

| Param | Type | Description | | --- | --- | --- | | a | mat | Matrix a | | n | number | The column offset |

mat.add(a, b) ⇒ mat

Add matrices

Kind: static method of mat
Returns: mat - a + b

| Param | Type | Description | | --- | --- | --- | | a | mat | Matrix a | | b | mat | Matrix b |

mat.sub(a, b) ⇒ mat

Subtract matrices

Kind: static method of mat
Returns: mat - a - b

| Param | Type | Description | | --- | --- | --- | | a | mat | Matrix a | | b | mat | Matrix b |

mat.mul(a, b) ⇒ mat | boolean

Multiply matrices

Kind: static method of mat
Returns: mat | boolean - ab or false if the matrices cannot be multiplied

| Param | Type | Description | | --- | --- | --- | | a | mat | Matrix a | | b | mat | Matrix b |

mat.scale(a, b) ⇒ mat

Scale a matrix

Kind: static method of mat
Returns: mat - a * b

| Param | Type | Description | | --- | --- | --- | | a | mat | Matrix a | | b | number | Scalar b |

mat.trans(a) ⇒ mat

Transpose a matrix

Kind: static method of mat
Returns: mat - A transposed matrix

| Param | Type | Description | | --- | --- | --- | | a | mat | The matrix to transpose |

mat.minor(a, i, j) ⇒ mat | boolean

Get the minor of a matrix

Kind: static method of mat
Returns: mat | boolean - The (i, j) minor of matrix a or false if the matrix is not square

| Param | Type | Description | | --- | --- | --- | | a | mat | Matrix a | | i | number | The row offset | | j | number | The column offset |

mat.det(a) ⇒ number | boolean

Get the determinant of a matrix

Kind: static method of mat
Returns: number | boolean - |a| or false if the matrix is not square

| Param | Type | Description | | --- | --- | --- | | a | mat | Matrix a |

mat.nor(a) ⇒ mat | boolean

Normalise a matrix

Kind: static method of mat
Returns: mat | boolean - ^a or false if the matrix is not square

| Param | Type | Description | | --- | --- | --- | | a | mat | The matrix to normalise |

mat.adj(a) ⇒ mat

Get the adjugate of a matrix

Kind: static method of mat
Returns: mat - The adjugate of a

| Param | Type | Description | | --- | --- | --- | | a | mat | The matrix from which to get the adjugate |

mat.inv(a) ⇒ mat | boolean

Get the inverse of a matrix

Kind: static method of mat
Returns: mat | boolean - a^-1 or false if the matrix has no inverse

| Param | Type | Description | | --- | --- | --- | | a | mat | The matrix to invert |

mat.eq(a, b) ⇒ boolean

Check if two matrices are equal

Kind: static method of mat
Returns: boolean - True if matrices a and b are identical, false otherwise

| Param | Type | Description | | --- | --- | --- | | a | mat | Matrix a | | b | mat | Matrix b |

mat.cpy(a) ⇒ mat

Copy a matrix

Kind: static method of mat
Returns: mat - A copy of matrix a

| Param | Type | Description | | --- | --- | --- | | a | mat | The matrix to copy |

mat.map(a, f) ⇒ mat

Call a function on each entry of a matrix and build a new matrix from the results

Kind: static method of mat
Returns: mat - Matrix a mapped through f

| Param | Type | Description | | --- | --- | --- | | a | mat | Matrix a | | f | matrixMapCallback | The function to call on each entry of the matrix |

mat.str(a, [ms], [ns]) ⇒ string

Convert a matrix into a string

Kind: static method of mat
Returns: string - A string representation of the matrix

| Param | Type | Default | Description | | --- | --- | --- | --- | | a | mat | | The matrix to convert | | [ms] | string | "', '" | The separator string for columns | | [ns] | string | "'\n'" | The separator string for rows |

matrixMapCallback ⇒ number

A function to call on each entry of a matrix

Kind: global typedef
Returns: number - The mapped entry

| Param | Type | Description | | --- | --- | --- | | value | number | The entry value | | index | number | The entry index | | entries | Array.<number> | The array of matrix entries |