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Hermite Polynomial Calculator

Free online hermite polynomial calculator. Enter your values and get instant results with the formula, step-by-step working, a worked example and FAQs — everything runs locally in your browser on Calcton, no signup required.

中文版:埃尔米特多项式在线计算器

Hermite Polynomial Calculator
阶数 n(0 到 20 的整数)
自变量 x(|x| ≤ 10)

埃尔米特多项式 Hn(物理学家约定)由三项递推 Hn+1 = 2x·Hn − 2n·Hn−1 生成,从 H0 = 1、H1 = 2x 起步。它带着权重 e^(−x²) 在整条实轴上正交:∫ Hm·Hn·e^(−x²) dx = √π·2ⁿ·n!·δ(m,n)。

它是量子谐振子的语言:第 n 个定态波函数正比于 Hn(√2·x/ℓ)·e^(−x²/2ℓ²),能级 (n + 1/2)ℏω。概率论里它同样出场——高斯分布的 n 阶矩与 Hermite 展开一一对应(高斯求积的节点正是 Hn 的根)。

参考值

H5(1) = −8,H6(1) = 184,H7(1) = 464

H5(0.5) = 41,H4(2) = 76

正交性:∫ H2·H3·e^(−x²) dx = 0,∫ H2²·e^(−x²) dx = 8√π = 14.17963080724413

How to use the Hermite Polynomial Calculator

  1. Fill in the inputs with your own numbers — every field shows what it expects.
  2. The result updates instantly as you type; no "Calculate" click needed.
  3. Read the result card for the main figure, the step-by-step formula, and practical notes.

Frequently asked questions

Is the Hermite Polynomial Calculator free?

Yes — all math calculators on Calcton are free, with no sign-up required. Your inputs are processed in your browser and never sent to a server.

Is there a Chinese version of this tool?

Yes. Use the Chinese version link above — it is the same calculator with the interface in Simplified Chinese.

References

Formulas and benchmarks used by this calculator follow these published sources.

  1. dlmf.nist.gov
  2. mathworld.wolfram.com
Kevin's profile

KevinContent LeadCalcton Editorial Team · Last updated 2026-09-28

Kevin maintains Calcton's formula verification and content: every calculator cites the standard it implements, worked examples are recomputed programmatically, and health benchmarks follow WHO and international guidelines.

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