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* Add `.js` extension to source file imports * Specify package `exports` in `package.json` Specify package type as `commonjs` (It's good to be specific) * Move all compiled scripts into `lib` directory Remove ./number.js (You can use the compiled ones in `./lib/*`) Tell node that the `esm` directory is type `module` and enable tree shaking. Remove unused files from packages `files` property * Allow importing of package.json * Make library ESM first * - Fix merge conflicts - Refactor `bundleAny` into `defaultInstance.js` and `browserBundle.cjs` - Refactor unit tests to be able to run with plain nodejs (no transpiling) - Fix browser examples * Fix browser and browserstack tests * Fix running unit tests on Node 10 (which has no support for modules) * Fix node.js examples (those are still commonjs) * Remove the need for `browserBundle.cjs` * Generate minified bundle only * [Security] Bump node-fetch from 2.6.0 to 2.6.1 (#1963) Bumps [node-fetch](https://github.com/bitinn/node-fetch) from 2.6.0 to 2.6.1. **This update includes a security fix.** - [Release notes](https://github.com/bitinn/node-fetch/releases) - [Changelog](https://github.com/node-fetch/node-fetch/blob/master/docs/CHANGELOG.md) - [Commits](https://github.com/bitinn/node-fetch/compare/v2.6.0...v2.6.1) Signed-off-by: dependabot-preview[bot] <support@dependabot.com> Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com> * Cleanup console.log * Add integration tests to test the entry points (commonjs/esm, full/number only) * Create backward compatibility error messages in the files moved/removed since v8 * Describe breaking changes in HISTORY.md * Bump karma from 5.2.1 to 5.2.2 (#1965) Bumps [karma](https://github.com/karma-runner/karma) from 5.2.1 to 5.2.2. - [Release notes](https://github.com/karma-runner/karma/releases) - [Changelog](https://github.com/karma-runner/karma/blob/master/CHANGELOG.md) - [Commits](https://github.com/karma-runner/karma/compare/v5.2.1...v5.2.2) Signed-off-by: dependabot-preview[bot] <support@dependabot.com> Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com> Co-authored-by: Lee Langley-Rees <lee@greenimp.co.uk> Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>
107 lines
4.5 KiB
JavaScript
107 lines
4.5 KiB
JavaScript
// test exp
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import assert from 'assert'
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import approx from '../../../../tools/approx.js'
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import math from '../../../../src/defaultInstance.js'
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const mathPredictable = math.create({ predictable: true })
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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 log2 = math.log2
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describe('log2', function () {
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it('should return the log base 2 of a boolean', function () {
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assert.strictEqual(log2(true), 0)
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assert.strictEqual(log2(false), -Infinity)
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})
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it('should return the log base 2 of positive numbers', function () {
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assert.strictEqual(log2(1), 0)
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assert.strictEqual(log2(2), 1)
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approx.deepEqual(log2(3), 1.584962500721156)
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assert.strictEqual(log2(0.25), -2)
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assert.strictEqual(log2(0.5), -1)
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assert.strictEqual(log2(4), 2)
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assert.strictEqual(log2(8), 3)
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})
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it('should return the log base 2 of negative numbers', function () {
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approx.deepEqual(log2(-1), complex('0.000000000000000 + 4.532360141827194i'))
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approx.deepEqual(log2(-2), complex('1 + 4.532360141827194i'))
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approx.deepEqual(log2(-3), complex('1.584962500721156 + 4.532360141827194i'))
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})
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it('should return the log base 2 of negative numbers with predicable:true', function () {
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assert.strictEqual(typeof mathPredictable.log2(-1), 'number')
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assert(isNaN(mathPredictable.log2(-1)))
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})
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it('should return the log base 2 of zero', function () {
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approx.deepEqual(log2(0), -Infinity)
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})
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it('should return the log of positive bignumbers', function () {
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const bigmath = math.create({ precision: 100 })
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assert.deepStrictEqual(bigmath.log2(bigmath.bignumber(1)), bigmath.bignumber(0))
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assert.deepStrictEqual(bigmath.log2(bigmath.bignumber(2)), bigmath.bignumber(1))
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assert.deepStrictEqual(bigmath.log2(bigmath.bignumber(4)), bigmath.bignumber(2))
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assert.deepStrictEqual(bigmath.log2(bigmath.bignumber(8)), bigmath.bignumber(3))
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assert.deepStrictEqual(bigmath.log2(bigmath.bignumber(16)), bigmath.bignumber(4))
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assert.deepStrictEqual(bigmath.log2(bigmath.bignumber(2).pow(500)), bigmath.bignumber(500))
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})
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it('should return the log of negative bignumbers', function () {
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const bigmath = math.create({ precision: 100 })
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approx.deepEqual(bigmath.log2(bigmath.bignumber(-1)), bigmath.complex('0.000000000000000 + 4.532360141827194i'))
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approx.deepEqual(bigmath.log2(bigmath.bignumber(-2)), bigmath.complex('1 + 4.532360141827194i'))
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approx.deepEqual(bigmath.log2(bigmath.bignumber(-3)), bigmath.complex('1.584962500721156 + 4.532360141827194i'))
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})
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it('should return the log of a bignumber with value zero', function () {
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const bigmath = math.create({ precision: 100 })
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assert.deepStrictEqual(bigmath.log2(bigmath.bignumber(0)).toString(), '-Infinity')
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})
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it('should throw an error if used with a wrong number of arguments', function () {
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assert.throws(function () { log2() }, /TypeError: Too few arguments/)
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assert.throws(function () { log2(1, 2) }, /TypeError: Too many arguments/)
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})
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it('should return the log base 2 of a complex number', function () {
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approx.deepEqual(log2(complex(0, 1)), complex('2.2661800709135i'))
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approx.deepEqual(log2(complex(0, -1)), complex('-2.2661800709135i'))
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approx.deepEqual(log2(complex(1, 1)), complex('0.500000000000000 + 1.1330900354567985i'))
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approx.deepEqual(log2(complex(1, -1)), complex('0.500000000000000 - 1.1330900354567985i'))
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approx.deepEqual(log2(complex(-1, -1)), complex('0.500000000000000 - 3.399270106370395i'))
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approx.deepEqual(log2(complex(-1, 1)), complex('0.500000000000000 + 3.399270106370395i'))
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approx.deepEqual(log2(complex(1, 0)), complex(0, 0))
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})
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it('should throw an error when used on a unit', function () {
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assert.throws(function () { log2(unit('5cm')) })
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})
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it('should throw an error when used on a string', function () {
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assert.throws(function () { log2('text') })
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})
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it('should return the log base 2 of each element of a matrix', function () {
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const res = [0, 1, 1.584962500721156, 2]
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approx.deepEqual(log2([1, 2, 3, 4]), res)
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approx.deepEqual(log2(matrix([1, 2, 3, 4])), matrix(res))
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approx.deepEqual(math.divide(log2(matrix([1, 2, 3, 4])), math.LOG2E),
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matrix([0, 0.693147180559945, 1.098612288668110, 1.386294361119891]))
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approx.deepEqual(log2(matrix([[1, 2], [3, 4]])),
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matrix([[0, 1], [1.584962500721156, 2]]))
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})
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it('should LaTeX log2', function () {
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const expression = math.parse('log2(10)')
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assert.strictEqual(expression.toTex(), '\\log_{2}\\left(10\\right)')
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})
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})
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