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 theseSoccer ball, Tie, Robot, Licorice, Flamenco dancer, Star, Cat burglar, Trapper, Kilt, Tramway, 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?

Donara Smbatyan
sketch #1504 donara


anonymous
anonymous
sketch #1855 MAGIC DANCE


anonymous
anonymous
sketch #921 comics ufo


anonymous
anonymous
sketch #5039


anonymous
anonymous
sketch #4831


Lucy Barnard
sketch #245 Fishy


anonymous
anonymous
sketch #4370 Breaking Bad


anonymous
anonymous
sketch #3496


anonymous
anonymous
sketch #4734 Timon by Anh Vu


anonymous
anonymous
sketch #5027


anonymous
anonymous
sketch #4885


anonymous
anonymous
sketch #1287 No smoke


anonymous
anonymous
sketch #5080 Megaman Zero (X) by Muhammad Raiyaan


anonymous
anonymous
sketch #5067


anonymous
anonymous
sketch #4279 Winnie the Pooh by Douglas Dalmora


anonymous
anonymous
sketch #3473 Finn by Luana Santos


anonymous
anonymous
sketch #3786


Mahmed Alhaj
sketch #3695


anonymous
anonymous
sketch #5229


anonymous
anonymous
sketch #68509


anonymous
anonymous
sketch #3127 Hulk George Lucaz


anonymous
anonymous
sketch #4722 Ichigo by Gopal Gopi


Gaurav Patel
sketch #2691


anonymous
anonymous
sketch #3639


anonymous
anonymous
sketch #3857


anonymous
anonymous
sketch #4987


anonymous
anonymous
sketch #5165 Marceline by Marvin Chrome

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