为什么球坐标体积微元的经角部分要用rsinφdφ,而不能直接用rdφ 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 theseWyvern, Mountain goat, Chicken chook, Sunflower, Porch swing, Slack rope, Dunce, Hot air balloon, Vanity, Panties, 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 #3208 ELETR by Raimundo Santos


anonymous
anonymous
sketch #1185


anonymous
anonymous
sketch #5055


anonymous
anonymous
sketch #3604 Falling Manipati Surya


anonymous
anonymous
sketch #214 bugs bunny


anonymous
anonymous
sketch #3589 Cheshire Cat by Helen Besley


anonymous
anonymous
sketch #3260 sorry to over comment on your blog .haha. I 'm just flnpiipg through your posts after finding you through the KCWC. Recently I had this huge urge to learn to sketch with black ink pens. This cloud drawing is exactly the thing that I feel the need to put on paper. : )


anonymous
anonymous
sketch #3626 Skream by Wellen Lima


anonymous
anonymous
sketch #4480 ZOMBIE by Rubel Parvez


anonymous
anonymous
sketch #3939


anonymous
anonymous
sketch #5048


anonymous
anonymous
sketch #3517 Scratch from Ice Age by VlAd Craciun


anonymous
anonymous
sketch #4358 Wink Károly Benkő


anonymous
anonymous
sketch #5297 Journey by Dmitry Sidorenko


anonymous
anonymous
sketch #68512


anonymous
anonymous
sketch #3476 Happy valentines day! Simona Honigmelone


AbdouGt Zizou
sketch #1503 L 'Algérie


anonymous
anonymous
sketch #2884 Robot Shimun Yeyo Ahmed


anonymous
anonymous
sketch #4691 Itachi by Jaqueline Salazar


anonymous
anonymous
sketch #3732 Michael Jackson by David Obando


anonymous
anonymous
sketch #5205


Alexander Volodimirovich Danilchenko
sketch #2777 Ralph & Vanellope by Alexander Volodimirovich Danilchenko


Marlyn Ortiz
sketch #2030


anonymous
anonymous
sketch #3590


Jorge Valero
sketch #2664


anonymous
anonymous
sketch #3285 Spongebob by Abbie Hayman


anonymous
anonymous
sketch #3166 Axl Rose by Jessie Lightwood

tomski为什么球坐标体积微元的经角部分要用rsinφdφ,而不能直接用rdφ 知乎 coloring