00527nam a22001817a 4500 117141 117140 OSt 20260706113020.0 210216b ||||| |||| 00| 0 eng d 9789386217646 519.61 PUN Pundir,Sudhir K 460 Numerical methods in science and engineering by Sudhir K Pundir Delhi CBS 2017 892 CBS Engineering series 899 C Programming Error & approximation Difference equations ddc BK