如何用纯几何法证明共焦点椭圆、双曲线的这一光学性质? 知乎 Template




You need a modern browser try chrome, to view this.

Background image: Hide Show

View Larger Image Image Credit: zhihu.com






Try and sketch some of theseWand, Meat grinder, Parallelogram, Script, Ruby, Medicine, Pregnant woman, Post office, Lawnmower, Peanut, view more ideas


please wait, the page is loading...

More Sketches

Take a peek at some of the sketches created by our users, are you a sketchite?

anonymous
anonymous
sketch #5351


anonymous
anonymous
sketch #4829


anonymous
anonymous
sketch #1076


anonymous
anonymous
sketch #5037 Dolphin by Meen Suksoi


Rachel Roe
sketch #673 Peachy mouse


anonymous
anonymous
sketch #4191


anonymous
anonymous
sketch #5278 Cosmos by Jenna Khoùlix�


anonymous
anonymous
sketch #2574


anonymous
anonymous
sketch #5226


anonymous
anonymous
sketch #978


anonymous
anonymous
sketch #3595


anonymous
anonymous
sketch #4942 Woman by Abbie Hayman


anonymous
anonymous
sketch #5330 Frozen by Amanda Kachadurian


anonymous
anonymous
sketch #5206


anonymous
anonymous
sketch #5176


anonymous
anonymous
sketch #380


anonymous
anonymous
sketch #4885


anonymous
anonymous
sketch #5101


anonymous
anonymous
sketch #3392


anonymous
anonymous
sketch #921 comics ufo


anonymous
anonymous
sketch #4708 Katekyo Hitman Reborn by Mário JBudo


anonymous
anonymous
sketch #3157 umpa lumpa


Tom Kelly
sketch #215 my mickey mouse


anonymous
anonymous
sketch #4876 Luffy by Nycole Prietsch


anonymous
anonymous
sketch #5201 Ponyta by WatasHi Satemura Oke


anonymous
anonymous
sketch #3535 Mickey by Hakan Usuğ


anonymous
anonymous
sketch #2062

tomski如何用纯几何法证明共焦点椭圆、双曲线的这一光学性质? 知乎 coloring