The book is not without faults.
Collection of Problems and Exercises in Mathematical Analysis. Often simply called " The Demidovich demidovich calculus
His solution was a systematic, hierarchical collection of problems designed to cover the entire first two years of mathematical analysis. The first edition was published in Russian in the 1950s. It was an instant hit not just in the USSR, but in socialist states like China, Cuba, and East Germany. The book is not without faults
: The classic Mir Publishers editions are often text-heavy and can be intimidating for beginners. Comprehensive Answers but in socialist states like China