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56 lines
2.2 KiB
JavaScript
56 lines
2.2 KiB
JavaScript
// test hypot
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import assert from 'assert'
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import approx from '../../../../tools/approx'
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import math from '../../../../src/bundleAny'
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const hypot = math.hypot
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const bignumber = math.bignumber
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describe('hypot', function () {
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it('should return the hypot of numbers', function () {
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assert.strictEqual(hypot(3, 4), 5)
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assert.strictEqual(hypot(3, -4), 5)
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approx.equal(hypot(3, 4, 5), 7.0710678118654755)
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assert.strictEqual(hypot(-2), 2)
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assert.strictEqual(hypot(0), 0)
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assert.strictEqual(hypot(Infinity), Infinity)
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})
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it('should return the hypot of BigNumbers', function () {
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assert.deepStrictEqual(hypot(bignumber(3), bignumber(4)), bignumber(5))
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assert.deepStrictEqual(hypot(bignumber(3), bignumber(-4)), bignumber(5))
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assert.deepStrictEqual(hypot(bignumber(3), bignumber(4), bignumber(5)),
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bignumber('7.07106781186547524400844362104849039284835937688474036588339869'))
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assert.deepStrictEqual(hypot(bignumber(-2)), bignumber(2))
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})
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it('should return the hypot of an Array with numbers', function () {
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assert.strictEqual(hypot([3, 4]), 5)
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})
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it('should return the hypot of an Matrix with numbers', function () {
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assert.strictEqual(hypot(math.matrix([3, 4])), 5)
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})
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it('should return the hypot of an Array with mixed numbers and BigNumbers', function () {
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assert.deepStrictEqual(hypot([3, bignumber(4)]), bignumber(5))
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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 () { hypot() }, /TypeError: Too few arguments/)
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assert.throws(function () { hypot([], 2) }, /TypeError: Too many arguments/)
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})
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it('should throw an error in case of unsupported types', function () {
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assert.throws(function () { hypot(new Date()) }, /TypeError: Unexpected type of argument/)
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assert.throws(function () { hypot([new Date()]) }, /TypeError: Unexpected type of argument/)
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assert.throws(function () { hypot([2, 3, math.complex()]) }, /TypeError: Unexpected type of argument/)
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assert.throws(function () { hypot(undefined) }, /TypeError: Unexpected type of argument/)
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})
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it('should LaTeX hypot', function () {
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const expression = math.parse('hypot(3,4)')
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assert.strictEqual(expression.toTex(), '\\hypot\\left(3,4\\right)')
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})
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})
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