论文部分内容阅读
在极坐标系中把极轴绕极点旋转某一角度,对于解决有关问题,带来很大的方便。 设有某一点M,在极坐标系OX中,它的坐标是M(ρ,θ)。如图1。
Rotating the polar axis around the pole in the polar coordinate system brings great convenience to solving the problem. With a certain point M, in the polar coordinate system OX, its coordinates are M(ρ, θ). Figure 1.