Zero Sum Game Calculator
Free online zero sum game 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:零和博弈计算器
原理:冯·诺依曼极小极大定理断言,任何有限零和博弈都存在值 v——行玩家保证拿到 maximin(各行最小值的最大),列玩家把损失压到 minimax(各列最大值的最小),两者相等处是鞍点;不相等时最优玩法是按特定概率随机混合,让对手无论怎么猜期望都一样。
步骤:① 输入 2×2 收益矩阵;② 点击求解;③ 查看鞍点或混合概率 p、q 与博弈值。
示例:A = [[3, 1], [2, 4]] 时 maximin = 2、minimax = 3,无鞍点,混合均衡 p = 0.5、q = 0.75、博弈值 v = 2.5——双方按此概率随机化后期望收益各为 v。
注意事项:收益矩阵以行玩家视角填写(零和下列玩家收益即相反数);混合策略是对手视角的最优随机化,不是主观骰子;若矩阵存在鞍点则随机化没有意义,直接打纯策略。
相关:矩阵博弈计算器先把大矩阵用支配策略化简到 2×2 再求解;纳什均衡计算器处理非零和的一般和博弈;期望值计算器给出混合策略期望收益的基本原理。
How to use the Zero Sum Game 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 Zero Sum Game 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 2026-10-05
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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