Learning matan?

Question

Mathematics

what is an easy and quick way to learn matan (calculus)?

Answer 1

A similar question was already asked by King Ptolemy I Euclid. And he received the answer: "There are no royal ways to geometry."

Answer 2

There are none. You take a book by Zorich or Fikhtengoltz, Demidovich's problem book and study. Why rush when you can do it right?
If you want to pass on three, simple lectures on YouTube will suffice.
If you really want to know and understand - the above textbooks.