I am a undergraduate engineer. As all the engineers know that we have 4 parts of maths in our 1st 4 semesters namely as
1) calculus ( maths 1)
2) linear algebra and vector calculus ( maths 2)
3) advanced engineering mathematics ( maths 3)
4) numerical and statiscal mathematics ( maths 4)
Maths 4 is different for different branches of engineering. As an civil engineer I studied numerical and statistical mathematics. For another branches they have complex part included and some extra formulas in amthe same chapters of ours.
I did try different publication in mathematics to get an ease to understand the concept and clear it. And the best of all I found was this publication namely, McGraw hill publication.
In this book they had given enough so that we could understand instead of giving more than we couldn't get a word.
Examples given are in mix proportion in difficulty as easy medium and hard.
I found this publication as most useful and convenient for understanding the concepts and learning it.
Thank you.