This book includes these contents Empirical Laws and Curve Fitting Theory of Equations Solution to Numerical Algebraic and Transcendental Equations Simultaneous Linear Algebraic Equations Finite Differences Interpolation with Equal Intervals Central Difference Interpolation Formulae Interpolation with Unequal Intervals Numerical Differentiation and Integration Difference Equations Numerical Solution to Ordinary Differential Equations Numerical Solution to Partial Differential Equations.