mirror of
https://github.com/josdejong/mathjs.git
synced 2026-01-25 15:07:57 +00:00
c5971b371a
* chore(package): update standard to version 12.0.0
* update to new lint version with --fix
I believe this mainly adds whitespace to `{}`'s.
* Replace assert.equal with assert.strictEqual
This breaks a lot of tests which I will endevour to fix in the next
commits.
* Fix most errors due to assert.strictEquals
Some instances of `strictEquals` are replaced by `deepEquals`.
`toString` has been used to make some string comparisions explicit.
Tests will still fail untill #1236 and #1237 are fixed.
* Fix assertion erros due to -0
With node 10, assert.strictEqual no longer considers `0 === -0`.
I missed these first time round as I was using node 8.
* Put toString correct side of bracket
I was converting the constructor to a string rather
than the result of the computation. Oops.
* Fixed #1236: quantileSeq has inconsistant return
* Update package-lock
* Fixed #1237: norm sometimes returning a complex number instead of number
* Fix cli tests
* More changes for standardjs, and fixes in unit tests
58 lines
1.3 KiB
JavaScript
58 lines
1.3 KiB
JavaScript
'use strict'
|
|
|
|
const deepMap = require('../../utils/collection/deepMap')
|
|
|
|
function factory (type, config, load, typed) {
|
|
/**
|
|
* Calculate the exponent of a value.
|
|
* For matrices, the function is evaluated element wise.
|
|
*
|
|
* Syntax:
|
|
*
|
|
* math.exp(x)
|
|
*
|
|
* Examples:
|
|
*
|
|
* math.exp(2) // returns number 7.3890560989306495
|
|
* math.pow(math.e, 2) // returns number 7.3890560989306495
|
|
* math.log(math.exp(2)) // returns number 2
|
|
*
|
|
* math.exp([1, 2, 3])
|
|
* // returns Array [
|
|
* // 2.718281828459045,
|
|
* // 7.3890560989306495,
|
|
* // 20.085536923187668
|
|
* // ]
|
|
*
|
|
* See also:
|
|
*
|
|
* expm1, log, pow
|
|
*
|
|
* @param {number | BigNumber | Complex | Array | Matrix} x A number or matrix to exponentiate
|
|
* @return {number | BigNumber | Complex | Array | Matrix} Exponent of `x`
|
|
*/
|
|
const exp = typed('exp', {
|
|
'number': Math.exp,
|
|
|
|
'Complex': function (x) {
|
|
return x.exp()
|
|
},
|
|
|
|
'BigNumber': function (x) {
|
|
return x.exp()
|
|
},
|
|
|
|
'Array | Matrix': function (x) {
|
|
// TODO: exp(sparse) should return a dense matrix since exp(0)==1
|
|
return deepMap(x, exp)
|
|
}
|
|
})
|
|
|
|
exp.toTex = { 1: `\\exp\\left(\${args[0]}\\right)` }
|
|
|
|
return exp
|
|
}
|
|
|
|
exports.name = 'exp'
|
|
exports.factory = factory
|