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 theseEmu, Fiddler, Juggler, Zebra, Squirrel, Pajamas, Moonshine, Kids, Chest, Pencil case, 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 #3381 DBZ by Adidtzu Ady


anonymous
anonymous
sketch #4393 ant


anonymous
anonymous
sketch #288 RK


anonymous
anonymous
sketch #4975 Orange by Marcos Roberto Molina


anonymous
anonymous
sketch #5220


anonymous
anonymous
sketch #5229


anonymous
anonymous
sketch #5059 Edward Hopper&#;s &#;Nighthawks&#; by Rosanne Zammit


anonymous
anonymous
sketch #508


anonymous
anonymous
sketch #3532 Angel by Geneval Mendes


anonymous
anonymous
sketch #4653 Kero by Indike Liyanage


anonymous
anonymous
sketch #5186


anonymous
anonymous
sketch #1260


anonymous
anonymous
sketch #3535 Mickey by Hakan Usuğ


Donara Smbatyan
sketch #1440 donara


anonymous
anonymous
sketch #4601 PSY Gentleman by Luis Daniel Sanchez Ramirez


anonymous
anonymous
sketch #1110


anonymous
anonymous
sketch #5150 Regina from Dino Crisis by Hsien-Ying Hsieh


anonymous
anonymous
sketch #4695


anonymous
anonymous
sketch #20840 Dog by Laur Ūūtiis


anonymous
anonymous
sketch #3786


Donara Smbatyan
sketch #1455 donara


anonymous
anonymous
sketch #3285 Spongebob by Abbie Hayman


anonymous
anonymous
sketch #5259


anonymous
anonymous
sketch #5154


anonymous
anonymous
sketch #5225 The Friendship by Annabelle Bourget


anonymous
anonymous
sketch #5314


anonymous
anonymous
sketch #5434


anonymous
anonymous
sketch #2477 hhhh


anonymous
anonymous
sketch #2279 puppetsss


anonymous
anonymous
sketch #3699 Dragon by Ana Cecilia

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