Numerical Techniques are the techniques with the help of which mathematical problems are formulated and consequently solved with very simple arithmetic operations. Now-a-days these arithmetic operations are implemented with programming languages but our interest lies in the fact that the researchers and students should learn and apply these methods manually. The present book highlights the developments concerned with the numerical methods and the material is so structured that the ordinary students build up their knowledge and understanding gradually. The interactive examples have been carefully designed to encourage students to engage fully in the problem-solving process.