This book deals with Numerical Analysis from the point of view of a student or a research worker who wishes to learn the subject by self study. The book is by no means exhaustive. However we have covered, in some detail, the following topics: a. Errors in computations, b. Matrix eigenvalue problems, c. Interpolation, d. Solution of algebraic and transcendental equations, e. Linear systems of equations, f. Numerical differentiation and integration, g. Ordinary differential equation.