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 theseParents, Cash register, Chainmail, Detective, Grog, Lawn, Fat guy, Tweezers, Cucumber, Swinging bridge, 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?

Nassim Nouri
sketch #2765 Kratos by Nassim Nouri


anonymous
anonymous
sketch #4387 dong air


anonymous
anonymous
sketch #2187


anonymous
anonymous
sketch #4704 Slash


anonymous
anonymous
sketch #2987


Rachel Roe
sketch #2642 Red dog


anonymous
anonymous
sketch #3236 Sunset by Aaron Bahary


anonymous
anonymous
sketch #4012 Owl sketch


anonymous
anonymous
sketch #5415


anonymous
anonymous
sketch #3039 Anonymous by Gootee Jaroonsit


Jocelyn Alejandra Rantul
sketch #2678 Portrait by Jocelyn Alejandra Rantul


anonymous
anonymous
sketch #5285


anonymous
anonymous
sketch #2573 homer simpson


anonymous
anonymous
sketch #4885


anonymous
anonymous
sketch #5236 Edward Scissorhands by Ronin Ronin


anonymous
anonymous
sketch #2022


anonymous
anonymous
sketch #5201 Ponyta by WatasHi Satemura Oke


anonymous
anonymous
sketch #3280 Adventure Time by Alina Danielle


anonymous
anonymous
sketch #5176


anonymous
anonymous
sketch #5312


anonymous
anonymous
sketch #2027


anonymous
anonymous
sketch #4351


Mahmed Alhaj
sketch #3695


anonymous
anonymous
sketch #4934 Nami-Ki Roberto Castro Colimil


anonymous
anonymous
sketch #3273

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