哪位大神能解释一下,为什么这里dx变成dx-1,而积分的上下限却不用改变? 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 theseFood cart, Ruby, Caravan, Hunter, Gravy, Explosion, Berries, Sails, Globe, Paradise, 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 #3413 Link by Dã Tr� ng


anonymous
anonymous
sketch #5100 Shadow by An Nguyen


anonymous
anonymous
sketch #5095 Lion by Frederic Knauer


anonymous
anonymous
sketch #578 Butterflies


anonymous
anonymous
sketch #5249 Adele - Skyfall by Mert Arda Yiğit


anonymous
anonymous
sketch #3064


anonymous
anonymous
sketch #5193


anonymous
anonymous
sketch #5052 Gorillaz by Rafał Dawid


Rachel Roe
sketch #2642 Red dog


Donara Smbatyan
sketch #1551 donara


sketchmaster
sketch #2618


anonymous
anonymous
sketch #5330 Frozen by Amanda Kachadurian


anonymous
anonymous
sketch #5258 Adventure Time by Kheith Ryan Lubiano


sketchmaster
sketch #2620 goblin man


anonymous
anonymous
sketch #3974 Bird Skerch w/ vibration


anonymous
anonymous
sketch #3499 Alien Laura Gutierrez Hinojosa


anonymous
anonymous
sketch #2910 Harley Quinn Germaine Hoens


anonymous
anonymous
sketch #3118 Joker Hernan Da Costa Marquez


anonymous
anonymous
sketch #2574


anonymous
anonymous
sketch #895


anonymous
anonymous
sketch #3339 Sasuke by Jean-Benoit Renaud


anonymous
anonymous
sketch #3157 umpa lumpa


anonymous
anonymous
sketch #22


anonymous
anonymous
sketch #5308 Taylor Swift by Gabi Ferrari


Rachel Roe
sketch #672 Snails pace


anonymous
anonymous
sketch #3716


anonymous
anonymous
sketch #1110


anonymous
anonymous
sketch #2881 Mickey Mouse by Michael Angcay

tomski哪位大神能解释一下,为什么这里dx变成dx-1,而积分的上下限却不用改变? 知乎 coloring