Glen Whitney
c429c19dfe
This should eventually be moved into typed-function itself, but for now it can be implemented on top of the existing typed-function. Uses subtypes to define (and error-check) gcd and lcm, which are only defined for integer arguments. Resolves #36.
34 lines
1.1 KiB
JavaScript
34 lines
1.1 KiB
JavaScript
import assert from 'assert'
|
|
import math from '../../src/pocomath.mjs'
|
|
import PocomathInstance from '../../src/core/PocomathInstance.mjs'
|
|
import * as numberSqrt from '../../src/number/sqrt.mjs'
|
|
import * as complex from '../../src/complex/all.mjs'
|
|
import * as numbers from '../../src/number/all.mjs'
|
|
|
|
describe('number', () => {
|
|
it('supports sqrt', () => {
|
|
assert.strictEqual(math.sqrt(4), 2)
|
|
assert.strictEqual(math.sqrt(NaN), NaN)
|
|
assert.strictEqual(math.sqrt(2.25), 1.5)
|
|
assert.deepStrictEqual(math.sqrt(-9), math.complex(0, 3))
|
|
math.config.predictable = true
|
|
assert.strictEqual(math.sqrt(-9), NaN)
|
|
math.config.predictable = false
|
|
assert.deepStrictEqual(math.sqrt(-0.25), math.complex(0, 0.5))
|
|
})
|
|
|
|
it('supports sqrt by itself', () => {
|
|
const no = new PocomathInstance('Numbers Only')
|
|
no.install(numberSqrt)
|
|
assert.strictEqual(no.sqrt(2.56), 1.6)
|
|
assert.strictEqual(no.sqrt(-17), NaN)
|
|
no.install(complex)
|
|
no.install(numbers)
|
|
assert.deepStrictEqual(no.sqrt(-16), no.complex(0,4))
|
|
})
|
|
|
|
it('computes gcd', () => {
|
|
assert.strictEqual(math.gcd(15, 35), 5)
|
|
})
|
|
})
|