This textbook is designed as per the syllabus ECL 201 of APJ Abdul Kalam Technological University, Kerala, India. This textbook is meticulously designed to cater to a broad audience, from novices eager to explore the world of programming to seasoned researchers aiming to refine their computational techniques. The authors Dr. Abubeker K M, Assistant Professor, Amal Jyothi College of Engineering (Autonomous), Kerala, India, Ms. Shefeena Kartim A LI- Grade I, Amal Jyothi College of Engineering (Autonomous), Kerala, India., and Mr. Suri Nuthalapati bring a wealth of knowledge, experience, and passion to the subject, making this textbook an authoritative and invaluable resource. Abubeker K M, Shefeena Kartim A, and Suri Nuthalapati share a collective vision of empowering students, researchers, and professionals with the skills and knowledge needed to excel in scientific computing. Their combined expertise and dedication to teaching create a comprehensive and practical guide that bridges the gap between theory and practice.