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H. S. Kasana’s Complex Variables: Theory and Applications – Second Edition, published by Phi Learning, is a comprehensive book for Mathematics students that covers mathematical theory and applied topics. It comprises of topics such as Algebra of Complex Numbers, Analytic Functions, Elementary Functions, Complex Integration, Sequences, Series and Products, Series Expansions, Singularities and Residues, Sums and Definite Integrals, Conformal Mappings, Laplace Transforms, and other special topics. A large number of Objective Questions is included towards the end of the book for better practice. About Phi Learning Private Ltd. Phi Learning Private Ltd. was founded in the year 1963. They have been one of the leading publishers of educational textbooks and academic books in India. They publish books in the areas of study of Engineering, Sciences, Management, Computer Science, Social Sciences and Humanities among many other subjects. Their books are widely read and used not only by students but also teachers and professionals in various fields. They develop and publish books by choosing the most elite of academicians from premier educational institutions like the IITs, the IIMs and such. Some of the books published by Phi Learning Private Ltd. are Object-Oriented Programming, Veterinary and Animal Science, Internet Security and Acceleration, Human Resource Information and Metallurgy and Materials Engineering.