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cube.js
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57 lines (50 loc) · 1.51 KB
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import { factory } from '../../utils/factory.js'
import { deepMap } from '../../utils/collection.js'
import { cubeNumber } from '../../plain/number/index.js'
const name = 'cube'
const dependencies = ['typed']
export const createCube = /* #__PURE__ */ factory(name, dependencies, ({ typed }) => {
/**
* Compute the cube of a value, `x * x * x`.
* For matrices, the function is evaluated element wise.
*
* Syntax:
*
* math.cube(x)
*
* Examples:
*
* math.cube(2) // returns number 8
* math.pow(2, 3) // returns number 8
* math.cube(4) // returns number 64
* 4 * 4 * 4 // returns number 64
*
* math.cube([1, 2, 3, 4]) // returns Array [1, 8, 27, 64]
*
* See also:
*
* multiply, square, pow, cbrt
*
* @param {number | BigNumber | Fraction | Complex | Array | Matrix | Unit} x Number for which to calculate the cube
* @return {number | BigNumber | Fraction | Complex | Array | Matrix | Unit} Cube of x
*/
return typed(name, {
number: cubeNumber,
Complex: function (x) {
return x.mul(x).mul(x) // Is faster than pow(x, 3)
},
BigNumber: function (x) {
return x.times(x).times(x)
},
Fraction: function (x) {
return x.pow(3) // Is faster than mul()mul()mul()
},
'Array | Matrix': function (x) {
// deep map collection, skip zeros since cube(0) = 0
return deepMap(x, this, true)
},
Unit: function (x) {
return x.pow(3)
}
})
})