Referencing in Report Writing: Moebius Transformations

[jimmycricket]

I'm currently writing a report on moebius transformations. I haven't had to reference for quite some time and I'm not totally sure how to go about it. When introducing theorems, definitions, etc do I need to reference the source?
Also throughout the report I have often taken concepts from a source and reduced them into more understandable language. Do I need to mention this source material?

 

[eigenperson]

If the theorem or definition is original to the source, you certainly need to cite the source.

If it's common knowledge (e.g. the definition of a Möbius transformation) you don't necessarily need to cite a source. However, if you closely follow a particular source's exposition of well-known material (for example, introducing theorems in the same order as a certain book or paper, or presenting a proof you found somewhere else), then you should give credit to that source.

 

[Khashishi]

If in doubt, cite it. It doesn't cost anything.