feat: convert sqrt for numbers
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@ -7,7 +7,7 @@
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test: 'echo "Error: no test specified" && exit 1',
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build: 'mkdirp build && cpy etc/package.json build --flat && tsc',
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start: 'node build',
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go: 'pnpm --sequential "/build|start/"',
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go: 'pnpm --sequential "/clean|build|start/"',
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clean: 'del-cli build',
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},
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packageManager: 'pnpm',
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19
src/index.ts
19
src/index.ts
@ -8,17 +8,30 @@ import {absquare as absquare_complex} from './Complex/arithmetic.js'
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const mockRealAdd = (a: number, b: number) => a+b
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const mockComplexAbsquare = (z: Complex<number>) => z.re*z.re + z.im*z.im
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const mockComplex = (re: number, im: number) => ({ re, im })
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const config = {
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predictable: false,
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epsilon: 1e-14
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}
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const quatAbsquare = absquare_complex({
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add: mockRealAdd,
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absquare: mockComplexAbsquare
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add: mockRealAdd,
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absquare: mockComplexAbsquare
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})
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const myabs = quatAbsquare({re: {re: 0, im: 1}, im: {re:2, im: 3}})
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const typeTest: typeof myabs = 7 // check myabs is just a number
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console.log('Result is myabs=', myabs)
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console.log('Result is', myabs)
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const sqrt = Specifications.numbers.sqrt({
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config,
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complex: mockComplex
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})
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console.log('Result of sqrt(16)=', sqrt(16))
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console.log('Result of sqrt(-4)=', sqrt(-4))
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// Check type of the generic square implementation
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console.log('Type of sqrt (number) is', Specifications.numbers.sqrt.reflectedType)
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console.log('Type of square is', Specifications.generic.square.reflectedType)
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console.log('Type of complex square root is', Specifications.complex.sqrt.reflectedType)
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@ -1,5 +1,6 @@
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import type {configDependency} from '../core/Config.js'
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import type {Dependencies, Signature} from '../interfaces/type.js'
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import { $implement } from '../interfaces/type.js'
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export const add: Signature<'add', number> = (a, b) => a + b
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export const unaryMinus: Signature<'unaryMinus', number> = a => -a
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@ -13,13 +14,14 @@ export const divide: Signature<'divide', number> = (a, b) => a / b
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const basicSqrt = a => isNaN(a) ? NaN : Math.sqrt(a)
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export const conservativeSqrt: Signature<'conservativeSqrt', number> = basicSqrt
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export const sqrt =
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(dep: configDependency & Dependencies<'complex', number>):
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Signature<'sqrt', number> => {
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if (dep.config.predictable || !dep.complex) return basicSqrt
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return a => {
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if (isNaN(a)) return NaN
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if (a >= 0) return Math.sqrt(a)
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return dep.complex(0, Math.sqrt(unaryMinus(a)))
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}
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}
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$implement!('sqrt',
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(dep: configDependency & Dependencies<'complex', number>): Signature<'sqrt', number> => {
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if (dep.config.predictable || !dep.complex) {
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return basicSqrt
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}
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return a => {
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if (isNaN(a)) return NaN
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if (a >= 0) return Math.sqrt(a)
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return dep.complex(0, Math.sqrt(unaryMinus(a)))
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}
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})
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