diff --git a/README.md b/README.md index b927740..48b3ff3 100644 --- a/README.md +++ b/README.md @@ -2,6 +2,26 @@ Sequel to pocomath as a prototype for mathjs overhaul +### Set up + +1. Install the `pnpm` package manager on your machine. +2. Clone the repository `https://code.studioinfinity.org/glen/nanomath.git` + and change directory into its top level. +3. `pnpm install` +4. `pnpm test` runs the tests. + +## Design philosophy + +Note the rest of this README lays out the initial structure and design +goals for the nanomath prototype, and remains a general guide for its +development. Some specific details have been adjusted, and this document +has not necessarily been kept up-to-date. See the +[project wiki](https://code.studioinfinity.org/glen/nanomath/wiki) for +the most recent details; where the wiki and this README differ, the wiki +is presumed to be authoritative. + +### Themes + The main themes of nanomath as compared to its predecessor are: 1. Settle on a code organization, rather than merely demonstrating that @@ -29,7 +49,7 @@ The main themes of nanomath as compared to its predecessor are: ported if a decision were taken to return to something more highly typescript-integrated. -## Code organization +### Code organization The pocomath prototype showed that we could have one-file-per-implementation, or multiple-files-per-implementation, and that we could group implementations by diff --git a/package.json5 b/package.json5 index d4243b4..19d0d4f 100644 --- a/package.json5 +++ b/package.json5 @@ -3,13 +3,19 @@ version: '1.0.0', description: 'Sequel to mathjs as prototype for mathjs overhaul', scripts: { - test: 'echo "Error: no test specified" && exit 1' + test: 'mocha ./**/*.spec.js', }, - keywords: ['math', 'algebra'], + keywords: [ + 'math', + 'algebra', + ], author: 'Glen Whitney', license: 'Apache 2.0', repository: { type: 'git', url: 'https://code.studioinfinity.org/glen/nanomath.git', }, + devDependencies: { + mocha: 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string-width: 4.2.3 + y18n: 5.0.8 + yargs-parser: 21.1.1 + + yocto-queue@0.1.0: {} diff --git a/src/nanomath.js b/src/nanomath.js index bd956fe..ebb055e 100644 --- a/src/nanomath.js +++ b/src/nanomath.js @@ -1,5 +1,5 @@ -import {TypeDispatcher} from './core/TypeDispatcher.js' import {numbers} from './numbers.js' +import {TypeDispatcher} from '#core/TypeDispatcher.js' const math = new TypeDispatcher(numbers) diff --git a/src/number/Number.js b/src/number/Number.js index 00167b0..c62c818 100644 --- a/src/number/Number.js +++ b/src/number/Number.js @@ -1,3 +1,3 @@ -import {Type} from '../core/Type.js' +import {Type} from '#core/Type.js' export const Number = new Type(n => typeof n === 'number') diff --git a/src/number/__test__/arithmetic.spec.js b/src/number/__test__/arithmetic.spec.js new file mode 100644 index 0000000..7d368cb --- /dev/null +++ b/src/number/__test__/arithmetic.spec.js @@ -0,0 +1,17 @@ +import assert from 'assert' +import math from '#nanomath' + +describe('number arithmetic', () => { + it('supports basic operations', () => { + assert.strictEqual(math.abs(-Infinity), Infinity) + assert.strictEqual(math.absquare(-2), 4) + assert.strictEqual(math.add(2, 2), 4) + assert.strictEqual(math.divide(6, 4), 1.5) + assert.strictEqual(math.cbrt(-8), -2) + assert.strictEqual(math.invert(-4), -0.25) + assert.strictEqual(math.multiply(4, 1.5), 6) + assert.strictEqual(math.negate(Infinity), -Infinity) + assert.strictEqual(math.subtract(4, 2), 2) + assert.strictEqual(math.quotient(7, 3), 2) + }) +}) diff --git a/src/number/arithmetic.js b/src/number/arithmetic.js index b47eff2..662a157 100644 --- a/src/number/arithmetic.js +++ b/src/number/arithmetic.js @@ -10,7 +10,7 @@ export const cbrt = plain(a => { if (negate) a = -a let result = a if (isFinite(a)) { - result = Math.exp(Math.log(x) / 3) + result = Math.exp(Math.log(result) / 3) result = (a / (result * result) + (2 * result)) / 3 } return negate ? -result : result @@ -18,4 +18,5 @@ export const cbrt = plain(a => { export const invert = plain(a => 1/a) export const multiply = plain((a, b) => a * b) export const negate = plain(a => -a) +export const subtract = plain((a, b) => a - b) export const quotient = plain((a,b) => Math.floor(a/b)) diff --git a/src/number/helpers.js b/src/number/helpers.js index 14fba17..774fc6e 100644 --- a/src/number/helpers.js +++ b/src/number/helpers.js @@ -1,4 +1,4 @@ -import {Returns, onType} from '../core/helpers.js' +import {Returns, onType} from '#core/helpers.js' import {Number} from './Number.js' export const plain = f => onType( diff --git a/src/package.json b/src/package.json new file mode 100644 index 0000000..4cfdaef --- /dev/null +++ b/src/package.json @@ -0,0 +1,7 @@ +{ + "imports" : { + "#nanomath": "./nanomath.js", + "#core/*.js": "./core/*.js" + }, + "type" : "module" +}