helpplease

Quote

A taylor series, like any converging series (do you understand converging) may be used to estimate in numeric calculation or stand in for algebraically in formula an expression that is difficult to handle.
If the series convderges quickly enough (it often does) we can ignore all terms after the first n, for some small n.
There are criteria for deciding how many terms to use. The process of discarding the rest is called truncation.

Hello, thank you for your reply.

Could you explan this image to simply understand this? What does this mean? 

Its also a sentence where it says: The truncation of this Taylor expansion leads to inaccuracies considering large apertures in the midpoint and offset domain.

This is what i asked earlier. 

What does "truncation of a taylor expansion" mean? 

Are someone here familiar with what an aperture is defined as in geophysics? 

Hello,

What is a point diffractor?

Thanks😃

Thank you everyone.

I think i understood your explanation. 

Hey guys,

What does a phase shift of sqrt(i)=45 degrees mean?

The context is that it describes distortions made by a phase of sqrt(i) = 45 degrees.

I did not understand this sentence, because I did not understand the sqrt(i) =45 degrees. 

Hope someone can help😇