10ⁿ 整数写成 10 的幂形式Convert Number to Power of Ten

使用说明与常见问题How-to & FAQ

「整数写成 10 的幂形式」是什么？What is the Convert Number to Power of Ten tool?

把整数写成 a×10^k 的科学计数形式（或纯 10^k）。本地处理。Rewrite an integer as a×10^k scientific form (or pure 10^k). Processed locally.

如何使用「整数写成 10 的幂形式」？How do I use the Convert Number to Power of Ten tool?

在「整数写成 10 的幂形式」中，把内容粘贴或输入到上方输入框，结果会实时显示在下方，点击「复制结果」即可复制。例如输入「1000」，得到「10^3」。In the Convert Number to Power of Ten: Paste or type into the input box; the result appears below instantly — click "Copy result" to copy it. Example: "1000" → "10^3".

什么时候只输出 10^k？When is the output just 10^k?

只有当整数是 1 后面跟若干个 0 时，例如 1000 → 10^3。其他整数写成精确的 a × 10^k，不做舍入，例如 1230 → 1.23 × 10^3；负数前面带负号。Only when the integer is 1 followed by zeros, e.g. 1000 → 10^3. Any other integer is written exactly as a × 10^k without rounding, e.g. 1230 → 1.23 × 10^3; negative numbers keep their minus sign.

结果精确吗？能处理多大的整数？Are the results exact? How large can the integer be?

精确。整数按数字串逐位处理（大整数 BigInt），不经过浮点，最多 10,000 位，例如 9007199254740993 写成 9.007199254740993 × 10^15，每一位都保留。千位分隔逗号（1,000）会去掉并提示；1e3 这样的指数写法和十六进制会报错，请把整数完整写出。Yes. The integer is processed as text, digit by digit (big integers via BigInt), with no floating-point step, up to 10,000 digits — 9007199254740993 becomes 9.007199254740993 × 10^15 with every digit kept. Thousands commas (1,000) are removed with a note; exponent forms such as 1e3 and hex give an error, so write the integer out in full.

输入和输出是什么样的？What does the input and output look like?

例如在「整数写成 10 的幂形式」中输入 1000，输出为：10^3。For example, the Convert Number to Power of Ten turns the input 1000 into: 10^3.

「整数写成 10 的幂形式」免费吗？需要注册吗？Is the Convert Number to Power of Ten free? Do I need an account?

「整数写成 10 的幂形式」完全免费，无需注册或安装，打开网页即可使用，手机和电脑都能用；输入的内容只在你的浏览器本地处理。The Convert Number to Power of Ten is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.