I tried to find e-book in this topic, but mostly e-book only mentions definition some identities and about calculus, but it's so short; not over 20 pages and no practice problems.
Can anyone recommend a book about this topic?
I tried to find e-book in this topic, but mostly e-book only mentions definition some identities and about calculus, but it's so short; not over 20 pages and no practice problems.
Can anyone recommend a book about this topic?
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