Consult Resources for information and code for all you ever wanted to know about the theory and practice of vector Spaces.
要了解向量空间的理论和实践所需的所有信息和代码，请参阅参考资料。
This website includes many free design resources for the vector artist.
此网站为矢量创作者提供了不少免费资源。
Having a stock of readymade vector images is a shortcut. If you are a designing greenhorn or an old hand, check out these ten resources for some inspiration and free vector art downloads.
不管你是设计新手还是老手，都推荐你看看这十大矢量图片资源网站，来找找灵感和免费矢量图片。
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