Hey. I am making the code you can see below. I believe the error is that when I plug in values for x it also feeds back to the “dx” in the integration, how can I go around that?
I put the question on this link as well 
https://mathematica.stackexchange.com/questions/266243/error-integrateilim-invalid-integration-variable-or-limits-in-0-1-0-1-pl
Untitled-1.nb (19.4 KB)
Crossposted here.
oh I apologize, we I not supposed to repost it somewhere else? sorry
It’s not about cross-posting. It’s about not letting all folks reading your cross-posted posts that the question was asked elsewhere. Without that knowledge folks might spend/waste a significant amount of time on your question when either an answer is already given or some comment was made that would given one insight as to how to solve the issue.
In short, you could be wasting time time of the experts from which you’re asking for help. It’s not polite at best.
oh I see. I apologize, I’ll delete the post
For whatever it’s worth I have no problem with multiple posts. All you should do is put a link in each post to the other post.
Hi Saif,
There is no reason to delete either post now since they both have crosspost links. A wider audience is good. In the future just remember to add the crosspost links.
of course, my apologies again