🐚 斐波那契数列计算器Fibonacci Calculator
计算第 n 个斐波那契数（大数精确），并列出前 n 项数列。Get the nth Fibonacci number (exact big integers) and list the sequence.
使用说明与常见问题How-to & FAQ
「斐波那契数列计算器」是什么？What is the Fibonacci Calculator?
计算第 n 个斐波那契数（大数精确），并列出前 n 项数列。Get the nth Fibonacci number (exact big integers) and list the sequence.
如何使用「斐波那契数列计算器」？How do I use the Fibonacci Calculator?
在「斐波那契数列计算器」中，填写「n」等参数，结果会随输入实时计算并显示在下方。In the Fibonacci Calculator: Fill in "n"; results are recalculated instantly as you type.
计算精度如何？How precise are the results?
「斐波那契数列计算器」使用 JavaScript 双精度浮点数（约 15–16 位有效数字）；极大或极小的数值可能存在精度误差。The Fibonacci Calculator uses double-precision floating point (about 15–16 significant digits); very large or very small values may lose precision.
「斐波那契数列计算器」免费吗？需要注册吗？Is the Fibonacci Calculator free? Do I need an account?
「斐波那契数列计算器」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 Fibonacci Calculator is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.