The first unit about cross-products,normal vectors and so on is actually useful now.
第一单元学得叉积、法向量这些,现在就有用了。
Hopefully you got practice with cross products, and computing them, in recitation yesterday.
希望你们在昨天的习题课上，练习了怎样计算叉乘。
That's actually the same formula that we are using for cross products.
这和求外积的那个公式，其实是同一个公式。
It is a complex cross-discipline issue to make electronic products of Chinese ancient books.
古籍电子化是一个非常复杂的跨学科问题。
It is a complex cross-discipline issue to make electronic products of Chinese ancient books.
古籍电子化是一个非常复杂的跨学科问题。
应用推荐