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Gauss Seidel Calculator

Free online gauss seidel 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:高斯-赛德尔迭代计算器

Gauss Seidel Calculator
系数矩阵 A(分号分行,逗号分列,2 阶到 8 阶)
右端向量 b(逗号分隔)

原理:高斯-赛德尔与雅可比的迭代格式相同,唯一区别是算到第 i 个分量时立刻使用本轮已更新的 x₁ 到 xᵢ₋₁;信息传播更快,对称正定或对角占优矩阵上通常比雅可比少一半左右的迭代轮数。

步骤:① 输入系数矩阵与右端向量;② 点击求解;③ 对比轮数——同一题雅可比约需两倍轮数。

示例:A = [[4, 1, 0], [1, 5, 1], [0, 1, 4]]、b = [6, 14, 14] 时高斯-赛德尔 13 轮收敛到 10⁻¹⁰,雅可比需要 23 轮;两者都收敛到精确解 [1, 2, 3]。

注意事项:必须用新值这一特性使计算严格串行,不能像雅可比那样直接并行;对称正定阵上恒收敛,但对一般对角占优阵也存在雅可比收敛而高斯-赛德尔发散的反例,交付前用残差确认。

相关:雅可比计算器展示旧值版本;SOR 计算器在两者之上引入松弛因子 ω;幂法计算器是同一「迭代逼近」思想在特征值问题上的应用。

How to use the Gauss Seidel 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 Gauss Seidel 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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