Of course, in order to do the calculations by adding and subtracting, we must make the necessary conversions. But with the help of a calculator or Excel, it is not that complicated.
I would like to know about meaning of “not that” in the sentence above?
Is there any difference in meaning of the sentence if I replace “not that complicated” by “not complicated” or “not too complicated”.
Not that complicated means not too complicated, as you surmised. I would normally write “not particularly complicated.”
Tosay something is not complicated is to state that it is uncomplicated. The writer is saying that while it’s not uncomplicated, it’s not excessively complicated, and you should be able to figure it out without difficulty.
Bear in mind, that this is a matter of opinion. As a husband and father, I have tried many times to explain something that seemed utterly simple to me, only to be met with blank stares of incomprehension. It seems my family has a different idea than I have about what things are simple.
Thanks a lot for your complete reply, Steve!