Jacobi Iteration Calculator
Free online jacobi iteration 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：雅可比迭代计算器
原理：把方程组第 i 个方程改写成 xᵢ = (bᵢ − Σⱼ≠ᵢ aᵢⱼxⱼ)/aᵢᵢ，迭代时右端一律用上一轮旧值——实现最简单、天然并行；矩阵严格对角占优或对称正定时保证收敛。
步骤：① 输入系数矩阵与右端向量；② 点击求解；③ 对比解向量、迭代轮数与残差。
示例：A = [[4, 1, 0], [1, 5, 1], [0, 1, 4]]、b = [6, 14, 14]（精确解 [1, 2, 3]）时，23 轮收敛到 10⁻¹⁰ 精度；同一矩阵高斯-赛德尔大约只用一半轮数。
注意事项：对角元 aᵢᵢ 为零会直接除零，需先换行；非对角占优的矩阵可能振荡发散，此时应换直接法或预处理；雅可比的价值在大型稀疏矩阵的并行场景，串行小矩阵用高斯-赛德尔更快。
相关：高斯-赛德尔计算器用新值加速同一迭代；SOR 计算器引入松弛因子进一步提速；格尔什戈林圆盘计算器从结构上判断收敛性。
How to use the Jacobi Iteration Calculator
- Fill in the inputs with your own numbers — every field shows what it expects.
- The result updates instantly as you type; no "Calculate" click needed.
- Read the result card for the main figure, the step-by-step formula, and practical notes.
Frequently asked questions
Is the Jacobi Iteration 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.
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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