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Cayley Hamilton Calculator

Free online cayley hamilton 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:凯莱-哈密顿定理验证器

Cayley Hamilton Calculator
方阵(分号分行,逗号或空格分列,2×2 或 3×3)

原理:凯莱-哈密顿定理断言任何方阵都满足自己的特征多项式——2 阶矩阵满足 A² − (tr A)·A + (det A)·I = 0,3 阶矩阵满足 A³ − (tr A)·A² + M·A − (det A)·I = 0,其中 M 是三个二阶主子式之和。

步骤:① 按行输入矩阵;② 点击验证;③ 查看特征多项式与把矩阵代入多项式后的残差。

示例:A = [[2, 1], [1, 3]] 的特征多项式为 λ^2 − 5λ + 5,代入得残差 0;3 阶例 A = [[1, 2, 3], [0, 1, 4], [5, 6, 0]] 的特征多项式为 λ^3 − 2λ^2 + -38λ − 1,把矩阵代入同样精确归零。

注意事项:定理对任意复方阵都成立,但浮点残差只应接近机器精度(约 10⁻¹⁴ 到 10⁻¹⁰),输入含大数时残差会按元素量级放大,用相对量级判断更稳妥;该定理也是求 2×2 矩阵逆的快速公式来源。

相关:行列式计算器给出特征多项式的常数项;幂法计算器用迭代逼近主特征值;克拉默法则计算器利用行列式直接解方程组。

How to use the Cayley Hamilton 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 Cayley Hamilton 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 2026-10-04

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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