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主成分分析(Principal Component Analysis, PCA)與其有關的數學

主成分分析(Principal Component Analysis, PCA)與其有關的數學

用來降維的好用分析方法
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CB Hsu
[線性代數] 特徵值(Eigen Value) & 特徵向量(Eigen Vector)及其相關的線性觀念複習筆記

[線性代數] 特徵值(Eigen Value) & 特徵向量(Eigen Vector)及其相關的線性觀念複習筆記

就是一個線性代數的筆記
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CB Hsu
[面試] Quant Job Interview Questions & Answers ch8 Logic/Brainteasers

[面試] Quant Job Interview Questions & Answers ch8 Logic/Brainteasers

Logic/Brainteasers
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CB Hsu

[面試]  Quantitative Finance Researcher 面試題

美國知名老牌Hedge Fund的面試題
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CB Hsu
[面試] 運彩機率

[面試] 運彩機率

今天遇到一個有趣的面試問題跟大家分享：
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CB Hsu
[C++筆記] 拷貝建構式(Copy Constructor) & 複製指派運算子(Copy Assignment Operator)

[C++筆記] 拷貝建構式(Copy Constructor) & 複製指派運算子(Copy Assignment Operator)

很容易搞混的兩種運用
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CB Hsu

[C++筆記] 建構函式的順序

範例
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[C++ 筆記] 朋友函式(Friend Function)、朋友類別(Friend Class)

兒子不能用Private，朋友可以
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[C++筆記] 建構式(Constructor)、解構式(Destructor)、拷貝建構式(Copy Constructor)

寫法
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[C++ 筆記] 函數指標(Function Pointer)

用法
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[C++筆記] Call by Value/Call by Pointer/Call by Reference

一、Call by Value
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[C++筆記] 常數變數(const variable)

一、修飾變數
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[C++筆記] data segment、heap以及stack

[C++筆記] data segment、heap以及stack

儲存方式比較
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[C++筆記] 靜態變數(Static Storage Variable)

[C++筆記] 靜態變數(Static Storage Variable)

(Global變數最好是有明確理由才使用)
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CB Hsu
[C++筆記] 靜態成員(Static Member)、靜態函數(Static Function)

[C++筆記] 靜態成員(Static Member)、靜態函數(Static Function)

靜態成員(Static Member)
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