极坐标的讲授

The Tuition of the Polar Coordinates

本文分析了极坐标与直角坐标不同的思维方式,强调了极坐标中很重要的三个圆,对二重积分化为二次积分时上下限的确定作了详细的讲解。

The text analyzed variant mode of thinkings of polar coordinates and rectangular coordinates and emphasized three very important circles in the polar coordinates and have done detailed explanation in the determination of upper and lower limits while Changing double integral into two integrals.