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Mathematics

High School

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A,B 是圆的对径点，CE,DE 是切线，BE 交圆于 F，BD,AC 交于 G，求证：FA 平分 ∠DFG 2025-7-18 01:34 乌贼

Pure Mathematics

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Dimension of Symmetric Matrix Space 2025-7-17 14:19 hbghlyj

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Technology

TeX / LaTeX

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将 LaTeX 宏（\lean, \leanok, \uses）与 Lean 声明关联，再由 plaTeX 渲染到 HTML 2025-6-26 17:42 hbghlyj

Mathematica

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给一个小数值，能否找到最接近于它的$a+b\sqrt{c}$的有理数$a,b,c$ 2025-6-23 09:03 hbghlyj

Programming

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撰写 Lean 证明脚本 2025-7-14 16:43 hbghlyj

General Topics

Applied Mathematics

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两文件逐字节比较判断是否相同耗时多? 2025-7-10 16:04 大白兔奶糖

Site Support

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能不能单独开一个版块，专门存各种定理命题之类的 2025-7-18 08:48 hbghlyj

Casual Talk

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使用拉普拉斯算子检测图像的边缘 2025-6-30 15:24 hbghlyj

Sandbox

Formatting Test

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如果想对一段内容着重强调，应该怎么弄比较好呢？ 2025-5-16 23:56 kuing

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