mirror of
https://github.com/josdejong/mathjs.git
synced 2026-01-18 14:59:29 +00:00
41 lines
1.6 KiB
JavaScript
41 lines
1.6 KiB
JavaScript
// test bignumber utils
|
|
import assert from 'assert'
|
|
|
|
import BigNumber from 'decimal.js'
|
|
import { createBigNumberE, createBigNumberPhi, createBigNumberPi, createBigNumberTau } from '../../../src/utils/bignumber/constants'
|
|
|
|
const Big32 = BigNumber.clone({ precision: 32 })
|
|
const Big64 = BigNumber.clone({ precision: 64 })
|
|
|
|
describe('bignumber', function () {
|
|
it('should calculate a bignumber e', function () {
|
|
assert.strictEqual(createBigNumberE(Big32).toString(),
|
|
'2.7182818284590452353602874713527')
|
|
assert.strictEqual(createBigNumberE(Big64).toString(),
|
|
'2.718281828459045235360287471352662497757247093699959574966967628')
|
|
})
|
|
|
|
it('should calculate a bignumber pi', function () {
|
|
assert.strictEqual(createBigNumberPi(Big32).toString(),
|
|
'3.1415926535897932384626433832795')
|
|
assert.strictEqual(createBigNumberPi(Big64).toString(),
|
|
'3.141592653589793238462643383279502884197169399375105820974944592')
|
|
})
|
|
|
|
it('should calculate a bignumber tau', function () {
|
|
assert.strictEqual(createBigNumberTau(Big32).toString(),
|
|
'6.283185307179586476925286766559')
|
|
assert.strictEqual(createBigNumberTau(Big64).toString(),
|
|
'6.283185307179586476925286766559005768394338798750211641949889184')
|
|
})
|
|
|
|
it('should calculate a bignumber phi', function () {
|
|
// FIXME: round-off error
|
|
// assert.strictEqual(bignumber.phi(32), '1.6180339887498948482045868343656')
|
|
assert.strictEqual(createBigNumberPhi(Big32).toString(),
|
|
'1.6180339887498948482045868343657')
|
|
assert.strictEqual(createBigNumberPhi(Big64).toString(),
|
|
'1.618033988749894848204586834365638117720309179805762862135448623')
|
|
})
|
|
})
|