如何用纯几何证明圆锥曲线的各种性质 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 theseLight bulb, Bracelet, Musk ox, Grocery store, Torque, Tower, Widget, Millipede, Swimmer, Angel food cake, 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 #1119 crimson


Melissa Cogo
sketch #734 ytsfsfsdhgdhgf


sketchmaster
sketch #2483 Una Catrina by sketchmaster


anonymous
anonymous
sketch #5289


sketchmaster
sketch #2639 Marilyn by sketchmaster


anonymous
anonymous
sketch #4900 Moonlight by Abdelwahab Haik


anonymous
anonymous
sketch #3693 Lucy from Elfen Lied by Simona Honigmelone


anonymous
anonymous
sketch #5124 Tony Tony Chopper by 陳一夫


anonymous
anonymous
sketch #4093 freefree


anonymous
anonymous
sketch #3604 Falling Manipati Surya


anonymous
anonymous
sketch #3753


anonymous
anonymous
sketch #286 sun


anonymous
anonymous
sketch #4918 Mike Wazowsky by George Andres Crowther Castillo


anonymous
anonymous
sketch #3274


anonymous
anonymous
sketch #5237 Gotye by Jhonatan Soares


anonymous
anonymous
sketch #4945


anonymous
anonymous
sketch #5181


anonymous
anonymous
sketch #5165 Marceline by Marvin Chrome


anonymous
anonymous
sketch #2904 Pinky and the Brain by Tim Poole


anonymous
anonymous
sketch #5326


anonymous
anonymous
sketch #5073 Broken Heart by Islam Mourad


sketchmaster
sketch #2635 Zoidberg by sketchmaster


anonymous
anonymous
sketch #3736 Why so serious? by Taï Marsan


愛君
sketch #1964 愛鼠繪


anonymous
anonymous
sketch #3575 Stitch by Laura Gutierrez Hinojosa


Helyryn
sketch #297 Fish


anonymous
anonymous
sketch #3344 Homer by Samuel Roberto


anonymous
anonymous
sketch #4760


anonymous
anonymous
sketch #5158 Till Lindemann by Cristina Love

tomski如何用纯几何证明圆锥曲线的各种性质 知乎 coloring