投影
正交投影
对于物体上任意一点的三维坐标P(x,y,z),投影后的三维坐标为 P ′ ( x ′ , y ′ , z ′ ) P^\prime(x^\prime,y^\prime,z^\prime) P′(x′,y′,z′),那么正交投影的方程为 { x ′ x y ′ y z ′ 0 \begin{cases} x^\primex\\y^\primey\\z^\prime0 \end{case…
题目: A common source of errors: How to avoid making latches When designing circuits, you must think first in terms of circuits:
I want this logic gate I want a combinational blob of logic that has these inputs and produces these outputs I want…