You are Here: Home >< Maths

# Help with one step on indentation theorem watch

1. I'm having trouble seeing the progression from one step to the next. I am just going to type out the line that I don't understand because I think it still makes sense out of context. If I am mistaken about this, let me know and I will post up other relevant information to the question.

The step is...

I don't see how the part just sort of leaves. I thought I might have made an error in my lecture notes but my friend has the same thing written in her notes.
2. Can you post the full question, or is this part of your proof for the Indentation theorem?
3. I'm pretty sure the two integrals are not equivalent. Looks like something got written down wrong somewhere.
4. (Original post by JoMo1)
Can you post the full question, or is this part of your proof for the Indentation theorem?

The full question is

The step I'm talking about comes about whilst using the indentation theorem on the small semicircle of radius to give the modified contour . The original contour was the semi-circular contour in the upper-half plane.
5. I was hoping it was some clever step your lecturer had made, seemingly they just forgot to write down the (x^2+1) part of the 2nd part.
6. (Original post by JoMo1)
I was hoping it was some clever step your lecturer had made, seemingly they just forgot to write down the (x^2+1) part of the 2nd part.
Oo yep that makes sense. The following question was to do with and I didn't realise they were two different questions. Thanks

TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Updated: April 14, 2011
Today on TSR

### University open days

1. University of Cambridge
Wed, 26 Sep '18
2. Norwich University of the Arts
Fri, 28 Sep '18
3. Edge Hill University
Faculty of Health and Social Care Undergraduate
Sat, 29 Sep '18
Poll
Useful resources

### Maths Forum posting guidelines

Not sure where to post? Read the updated guidelines here

### How to use LaTex

Writing equations the easy way

### Study habits of A* students

Top tips from students who have already aced their exams