Week 3-1

作者: 忻恆 | 来源:发表于2020-03-31 20:12 被阅读0次

venture into :进入(探险)

orthogonal polynomials:正交多项式

extract concepts: that's the concept of vector space

Vector Space: consists of a set of vectors,

could be an infinite set and is likely to be an infinite set and a set of scalars, such as the real numbers, 

that has a certain property which is that it's closed under vector addition, and scalar multiplication.

linearly independent : 线性独立

一组向量线性独立:

if c_1u_1+c_2u_2+c_3u_3+...+c_nu_n = 0

then c_1 = c_2= c_3=  ... =c_n = 0

no vector in the set can be written as a linear combination of other vectors.

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