Basic Math¶
Vector¶
- multiplication, normalization
- addition(for any dimension)
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dot product: directional projection of \(a\) onto \(b\) (\(b\) being a unit vector)
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orthonormal vectors: perpendicular and unit length
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傅里叶变换中的基函数也是正交基
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cross product
Line Equation¶
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\((p-p_0)n=0\)
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\(Ax+By+C=0\)