Numerical Methods by Dr. Sukhendu Dey and Dr. Shishir Gupta gives comprehensive study of Errors, Interpolation, Extrapolation, Regression, Solving Equations and Systems of Equations, Solving Eigen value or singular value problem, Optimization, Evaluating integrals, Differential Equations . Its clear and precise explanation of concepts along with ample and variety of solved problems, which is a must for this analytical based subject, are the main USPs of this book. Further computer programs have been provided along with each algorithm which further aids in understanding of this analytical based subject.