💱 费雪方程式Fisher Equation

使用说明与常见问题How-to & FAQ

「费雪方程式」是什么？What is the Fisher Equation tool?

(1+i) = (1+r)(1+π) ⇒ i ≈ r+π。本地处理。可设置「实际利率 %」、「通胀率 %」。(1+i)=(1+r)(1+π) ⇒ i ≈ r+π. Processed locally. Settings: Real rate %, Inflation %.

如何使用「费雪方程式」？How do I use the Fisher Equation tool?

填写实际利率和通胀率，即可按费雪方程 (1+i) = (1+r)(1+π) 得到名义利率，并给出近似值 i ≈ r + π。结果会随输入实时更新。Enter the real interest rate and the inflation rate to get the nominal rate from the Fisher equation (1+i) = (1+r)(1+π), along with the approximation i ≈ r + π. The result updates as you type.

精确？Exact?

乘积式为精确；和式为近似。Product form is exact; sum is approximate.

通胀率可以留空吗？Can inflation be blank?

可以，按 0% 计。Yes — blank counts as 0%.

能举个计算实例吗？Can you show a worked example?

例如在「费雪方程式」中填 实际利率 % = 2，通胀率 % = 3，结果区显示：名义利率 %：5.06；近似 r+π：5For example, entering Real rate % = 2, Inflation % = 3 in the Fisher Equation gives: Nominal %: 5.06; Approx r+π: 5

哪些输入会被检查？Which inputs are validated?

「费雪方程式」会检查这些输入——「实际利率 %」：必须填写，不能为负数；「通胀率 %」：可留空；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 Fisher Equation checks its inputs — "Real rate %": required, cannot be negative; "Inflation %": optional; 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?

「费雪方程式」的设置：「实际利率 %」默认 2；「通胀率 %」默认 3。每次生成结果都按当前设置处理。Settings in the Fisher Equation — "Real rate %" default 2; "Inflation %" default 3. The result always uses the current settings.

计算结果可以作为最终依据吗？Can I rely on the result?

「费雪方程式」按标准公式计算，结果仅供参考；实际金额以银行、券商或税务机关的规则和四舍五入方式为准。The Fisher Equation uses standard formulas and is for estimation only; actual figures depend on your bank, broker or tax authority's rules and rounding.

「费雪方程式」免费吗？需要注册吗？Is the Fisher Equation free? Do I need an account?

「费雪方程式」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 Fisher Equation is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.