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 theseRoad, Lollipop sucker, Billy Goat, Bison, Patio, Trapdoor, Gizmo, Ranch, Yacht, Flowerbed, 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 #1455 donara


anonymous
anonymous
sketch #3036 Wiz Khalifa by Malyi Link


anonymous
anonymous
sketch #3447 Hidan (Akatsuki) by ßeyza Karaca


anonymous
anonymous
sketch #3236 Sunset by Aaron Bahary


anonymous
anonymous
sketch #214 bugs bunny


anonymous
anonymous
sketch #4700


anonymous
anonymous
sketch #4995


Raisa Mahmud
sketch #2058


anonymous
anonymous
sketch #3698


Ariel Fernando
sketch #1061 garota ao vento


sketchmaster
sketch #2628 Black haired women


anonymous
anonymous
sketch #4031


sketchmaster
sketch #2446 Joker by sketchmaster


anonymous
anonymous
sketch #2926 Power Puff Girls by Sylvie Rieux


anonymous
anonymous
sketch #3769 The Beatles by يآآسر محمد


anonymous
anonymous
sketch #5213


Tom Kelly
sketch #15


anonymous
anonymous
sketch #5438


anonymous
anonymous
sketch #3476 Happy valentines day! Simona Honigmelone


anonymous
anonymous
sketch #5228 Rin & Len by Mark Phillips


anonymous
anonymous
sketch #5174


anonymous
anonymous
sketch #3753


anonymous
anonymous
sketch #4086 2lips


يآآسر محمد
sketch #2818 Hellboy by يآآسر محمد


anonymous
anonymous
sketch #3473 Finn by Luana Santos


anonymous
anonymous
sketch #5257

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