這叫做仿射交換.This type is called affine.摘要本文研究了關(guān)于投影體的中心仿射不變量比的問題.This paper concerns the ratio of centro - affine invarients for a projection body.用仿射變換的方法圖解空間幾何問題對(duì),在圖解圓與橢圓之間的轉(zhuǎn)換過程中確定長(zhǎng)短軸是解題的關(guān)鍵.This paper discribes the method o...