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Question
函数的内积是一种函数之间的二元运算。在复数域\(\mathbb{C}\)中,给定两个复数函数\(f(x), g(x)\),则函数的内积定义为\(\left\langle f(x), g(x)\right\rangle_{w(x),x\in(a,b)}\)[...]
Answer

\(\displaystyle\left\langle f(x), g(x)\right\rangle_{w(x),x\in(a,b)}:=\int^{x=b}_{x=a}f^{*}(x)g(x)w(x)dx\)

其中,\(w(x)\)是权重函数(weight function),\((a,b)\)是函数内积的定义域,\(f^{*}(x)\)是函数\(f(x)\)的复数共轭
- 权重函数一般是1


Question
函数的内积是一种函数之间的二元运算。在复数域\(\mathbb{C}\)中,给定两个复数函数\(f(x), g(x)\),则函数的内积定义为\(\left\langle f(x), g(x)\right\rangle_{w(x),x\in(a,b)}\)[...]
Answer
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Question
函数的内积是一种函数之间的二元运算。在复数域\(\mathbb{C}\)中,给定两个复数函数\(f(x), g(x)\),则函数的内积定义为\(\left\langle f(x), g(x)\right\rangle_{w(x),x\in(a,b)}\)[...]
Answer

\(\displaystyle\left\langle f(x), g(x)\right\rangle_{w(x),x\in(a,b)}:=\int^{x=b}_{x=a}f^{*}(x)g(x)w(x)dx\)

其中,\(w(x)\)是权重函数(weight function),\((a,b)\)是函数内积的定义域,\(f^{*}(x)\)是函数\(f(x)\)的复数共轭
- 权重函数一般是1

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Definition of Inner product for a function
函数的内积是一种函数之间的二元运算。在复数域\(\mathbb{C}\)中,给定两个复数函数\(f(x), g(x)\),则函数的内积定义为: \(\displaystyle\left\langle f(x), g(x)\right\rangle_{w(x),x\in(a,b)}:=\int^{x=b}_{x=a}f^{*}(x)g(x)w(x)dx\) 其中,\(w(x)\)是权重函数(weight function),\((a,b)\)是函数内积的定义域,\(f^{*}(x)\)是函数\(f(x)\)的复数共轭 - 权重函数一般是1

Summary

statusnot learnedmeasured difficulty37% [default]last interval [days]               
repetition number in this series0memorised on               scheduled repetition               
scheduled repetition interval               last repetition or drill

Details

No repetitions


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