mirror of
https://github.com/josdejong/mathjs.git
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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
97 lines
4.1 KiB
JavaScript
97 lines
4.1 KiB
JavaScript
const assert = require('assert')
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const math = require('../../../src/main')
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const approx = require('../../../tools/approx')
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const pi = math.pi
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const asinh = math.asinh
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const sinh = math.sinh
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const complex = math.complex
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const matrix = math.matrix
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const unit = math.unit
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const bigmath = math.create({ number: 'BigNumber', precision: 20 })
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const biggermath = math.create({ precision: 21 })
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const asinhBig = bigmath.asinh
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const Big = bigmath.bignumber
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describe('asinh', function () {
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it('should return the hyperbolic arcsin of a boolean', function () {
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approx.equal(asinh(true), 0.8813735870195430)
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assert.strictEqual(asinh(false), 0)
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})
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it('should return the hyperbolic arcsin of a number', function () {
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approx.equal(asinh(-2), -1.44363547517881034249327674027311)
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approx.equal(asinh(-1), -0.88137358701954302523260932497979)
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approx.equal(asinh(0), 0)
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approx.equal(asinh(1), 0.88137358701954302523260932497979)
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approx.equal(asinh(2), 1.44363547517881034249327674027311)
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approx.equal(asinh(pi), 1.8622957433108482198883613251826)
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})
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it('should return the hyperbolic arcsin of a bignumber', function () {
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const arg = Big(-2)
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assert.deepStrictEqual(asinhBig(arg), Big('-1.4436354751788103425'))
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assert.deepStrictEqual(asinhBig(Big(-1)), Big('-0.88137358701954302523'))
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assert.deepStrictEqual(asinhBig(Big(0)), Big(0))
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assert.deepStrictEqual(asinhBig(Big(1)), Big('0.88137358701954302523'))
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assert.deepStrictEqual(asinhBig(Big(2)), Big('1.4436354751788103425'))
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assert.deepStrictEqual(asinhBig(bigmath.pi).toString(), '1.8622957433108482199')
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// Make sure arg was not changed
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assert.deepStrictEqual(arg, Big(-2))
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})
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it('should be the inverse function of hyperbolic sin', function () {
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approx.equal(asinh(sinh(-1)), -1)
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approx.equal(asinh(sinh(0)), 0)
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approx.equal(asinh(sinh(0.1)), 0.1)
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approx.equal(asinh(sinh(0.5)), 0.5)
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approx.equal(asinh(sinh(2)), 2)
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})
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it('should be the inverse function of bignumber sinh', function () {
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assert.deepStrictEqual(asinhBig(bigmath.sinh(Big(-1))), Big(-1))
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assert.deepStrictEqual(asinhBig(bigmath.sinh(Big(0))), Big(0))
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assert.deepStrictEqual(asinhBig(bigmath.sinh(Big(0.5))), Big(0.5))
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assert.deepStrictEqual(asinhBig(bigmath.sinh(Big(2))), Big(2))
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/* Pass in more digits to pi. */
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assert.deepStrictEqual(asinhBig(biggermath.sinh(Big(0.1))), Big('0.099999999999999999996'))
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})
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it('should return the arcsinh of a complex number', function () {
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approx.deepEqual(asinh(complex('2+3i')), complex(1.9686379257931, 0.9646585044076028))
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approx.deepEqual(asinh(complex('2-3i')), complex(1.9686379257931, -0.9646585044076028))
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approx.deepEqual(asinh(complex('-2+3i')), complex(-1.9686379257931, 0.9646585044076028))
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approx.deepEqual(asinh(complex('-2-3i')), complex(-1.9686379257931, -0.9646585044076028))
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approx.deepEqual(asinh(complex('1+i')), complex(1.0612750619050357, 0.6662394324925153))
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approx.deepEqual(asinh(complex('i')), complex(0, pi / 2))
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approx.deepEqual(asinh(complex('1')), complex(0.881373587019543025, 0))
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assert.deepStrictEqual(asinh(complex('0')), complex(0, 0))
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})
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it('should throw an error if called with a unit', function () {
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assert.throws(function () { asinh(unit('45deg')) })
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assert.throws(function () { asinh(unit('5 celsius')) })
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})
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it('should throw an error if called with a string', function () {
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assert.throws(function () { asinh('string') })
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})
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it('should calculate the arcsin element-wise for arrays and matrices', function () {
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const asinh123 = [0.881373587019543025, 1.4436354751788103, 1.8184464592320668]
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approx.deepEqual(asinh([1, 2, 3]), asinh123)
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approx.deepEqual(asinh(matrix([1, 2, 3])), matrix(asinh123))
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})
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it('should throw an error in case of invalid number of arguments', function () {
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assert.throws(function () { asinh() }, /TypeError: Too few arguments/)
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assert.throws(function () { asinh(1, 2) }, /TypeError: Too many arguments/)
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})
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it('should LaTeX asinh', function () {
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const expression = math.parse('asinh(2)')
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assert.strictEqual(expression.toTex(), '\\sinh^{-1}\\left(2\\right)')
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})
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})
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