清空筛选条件
清空筛选条件

How to compute an indefinite integral?

3 次查看（过去 30 天）
Tiffany Kocis
Tiffany Kocis 2013-9-16
I am trying to have MATLAB solve
2,241.1 = integral (from 0 to t) of (1000dt).
For whatever reason, I cannot get the integral to work even if I take out the solve and such.
syms x t
int(1000, [0,t])
returns the following error:
??? Error using ==> mupadmex Error in MuPAD command: Second argument must be either of form x or x=a..b [int]
Error in ==> sym.int at 40 r = mupadmex('symobj::intindef',f.s,x.s);
Error in ==> Kocis_hw1_problem4 at 54 int(1000,[0,t])
Can anyone tell me how to do this?
Thanks, Tiffany

请先登录，再回答此问题。

回答（1 个）

Shashank Prasanna
Shashank Prasanna 2013-9-16
>> int(1000,t,0,t)
The limits go in as the 3rd and the 4th arguments seperately:
http://www.mathworks.com/help/symbolic/int.html
  2 个评论
Tiffany Kocis
Tiffany Kocis 2013-9-16
编辑：Azzi Abdelmalek 2013-9-16
That worked! but the link says this:
int(expr,var,[a,b]), int(expr,var,[a b]), and int(expr,var,[a;b]) are equivalent to int(expr,var,a,b).
Whats the difference?

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Symbolic Math Toolbox 的更多信息

标签

产品

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by