🧠 智商百分位示意IQ Percentile (demo)
假设 IQ ~ N(100,15²)，用误差函数估百分位。本地处理。可设置「智商」。Assume IQ ~ N(100,15²); percentile via erf. Processed locally. Settings: IQ.
使用说明与常见问题How-to & FAQ
「智商百分位示意」是什么？What is the IQ Percentile (demo) tool?
假设 IQ ~ N(100,15²)，用误差函数估百分位。本地处理。可设置「智商」。Assume IQ ~ N(100,15²); percentile via erf. Processed locally. Settings: IQ.
如何使用「智商百分位示意」？How do I use the IQ Percentile (demo) tool?
在「智商百分位示意」中，填写「智商」等参数，结果会随输入实时计算并显示在下方。In the IQ Percentile (demo): Fill in "IQ"; results are recalculated instantly as you type.
测验？Test?
示意正态模型，非某张量表。Normal demo - not a specific scale.
智商范围？IQ range?
本页接受大于 40 且小于 200 的数值（不含两端）；更极端的分数在正态近似下百分位几乎是 0 或 100，没有示意意义。This page accepts values greater than 40 and less than 200 (exclusive). More extreme scores are nearly 0% or 100% under the normal model and are not useful as a demo.
哪些输入会被检查？Which inputs are validated?
「智商百分位示意」会检查这些输入——「智商」：必须填写；绝对值超过 10¹⁵ 的数也会被拒绝。不符合时结果区显示具体提示，不会给出数字。The IQ Percentile (demo) checks its inputs — "IQ": required; numbers above 10¹⁵ in absolute value are rejected too. When a value fails, the result area names the problem instead of showing a number.
有哪些选项可以调整？What options can I adjust?
「智商百分位示意」的设置：「智商」默认 115。每次生成结果都按当前设置处理。Settings in the IQ Percentile (demo) — "IQ" default 115. The result always uses the current settings.
计算精度如何？How precise are the results?
「智商百分位示意」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 IQ Percentile (demo) uses double-precision floating point (about 15–16 significant digits); very large or very small values may lose precision.
「智商百分位示意」免费吗？需要注册吗？Is the IQ Percentile (demo) free? Do I need an account?
「智商百分位示意」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 IQ Percentile (demo) is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.