This page takes you to the lecture notes and presentations I use in the class while teaching Numerical Methods. These lecture notes have been prepared based on the "Numerical Analysis and Computer Programming" of B.Sc(H) Physics (PHY 302C) and "Computational Laboratory" of M.Sc (Physics), (PHY 1001C) Department of Physics, Cotton University, Panbazar, Guwahati, Assam. The materials presented here will also be useful to the science and engineering students of other universities. Please let me know if there are any comments/suggestions to improve the presentation of the materials. The Fortran 77 programs for these methods have been presented in the subpage: Fortran. Please visit the following site for more materials: http://vle.du.ac.in/mod/resource/view.php?id=13320