https://github.com/hi2ma-bu4/bigfloat

JavaLibraryScriptから移植したBigFloatライブラリ
https://github.com/hi2ma-bu4/bigfloat

bigfloat javascript library typescript

Last synced: 1 day ago
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JavaLibraryScriptから移植したBigFloatライブラリ

• Host: GitHub
• URL: https://github.com/hi2ma-bu4/bigfloat
• Owner: hi2ma-bu4
• License: apache-2.0
• Created: 2026-03-15T08:35:40.000Z (3 months ago)
• Default Branch: main
• Last Pushed: 2026-05-30T15:30:53.000Z (2 days ago)
• Last Synced: 2026-05-30T17:13:49.541Z (1 day ago)
• Topics: bigfloat, javascript, library, typescript
• Language: TypeScript
• Homepage: https://hi2ma-bu4.github.io/RepoShowcase/public/bigfloat/test/
• Size: 2 MB
• Stars: 0
• Watchers: 0
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# BigFloat

[![GitHub License](https://img.shields.io/github/license/hi2ma-bu4/BigFloat)](https://github.com/hi2ma-bu4/BigFloat/blob/main/LICENSE)

[![GitHub Release](https://img.shields.io/github/v/release/hi2ma-bu4/BigFloat?label=latest)](https://github.com/hi2ma-bu4/BigFloat/releases/latest)

[![GitHub Tag](https://img.shields.io/github/v/tag/hi2ma-bu4/BigFloat?label=newest)](https://github.com/hi2ma-bu4/BigFloat/releases)

[![jsDelivr hits (GitHub)](https://img.shields.io/jsdelivr/gh/hy/hi2ma-bu4/BigFloat?logo=jsdelivr&logoColor=%23fff)](https://cdn.jsdelivr.net/gh/hi2ma-bu4/BigFloat/dist/BigFloat.js)

[![GitHub repo size](https://img.shields.io/github/repo-size/hi2ma-bu4/BigFloat)](https://github.com/hi2ma-bu4/BigFloat)

[![GitHub js file size in bytes](https://img.shields.io/github/size/hi2ma-bu4/BigFloat/dist/BigFloat.js?label=BigFloat.js)](https://github.com/hi2ma-bu4/BigFloat/blob/main/dist/BigFloat.js)

[![GitHub minify js file size in bytes](https://img.shields.io/github/size/hi2ma-bu4/BigFloat/dist/BigFloat.min.js?label=BigFloat.min.js)](https://github.com/hi2ma-bu4/BigFloat/blob/main/dist/BigFloat.min.js)

[![GitHub d.ts file size in bytes](https://img.shields.io/github/size/hi2ma-bu4/BigFloat/dist/BigFloat.d.ts?label=BigFloat.d.ts)](https://github.com/hi2ma-bu4/BigFloat/blob/main/dist/BigFloat.d.ts)

JavaScript / TypeScript で高精度な浮動小数点演算を扱うためのライブラリです。

## 特徴

- 任意精度の四則演算、冪乗、対数、三角関数に対応

- `Infinity` / `-Infinity` / `NaN` を状態として扱う特殊値対応

- `BigFloatStream` による連続計算・集計 API を利用可能

[API一覧(自動生成)](./API.md)

## CDN

```txt

https://cdn.jsdelivr.net/gh/hi2ma-bu4/BigFloat/dist/BigFloat.js

```

## 基本例

```ts

import { bigFloat, BigFloat, BigFloatStream } from "BigFloat";

const value = bigFloat("1.234567890123456789", 80n)

	.mul("3.5")

	.div("7");

console.log(value.toString());

const root = BigFloat.from("2", 100n).sqrt();

console.log(root.toString());

const sum = new BigFloatStream([1, 2, 3, 4], 80n).sum();

console.log(sum.toString());

const special = bigFloat(1).div(0);

console.log(special.toString()); // Infinity

```

## 開発

```bash

npm install

npm run build

npm run test

```