Programming: an introduction to the profession. In three volumes. Vol.1: Basics of programming.

The book is aimed at people who learn programming on their own; it considers a wide range of issues, including introductory information, basic concepts and techniques of programming, the capabilities of the operating system kernel and the principles of its functioning, programming paradigms. It is supposed to use operating systems of the Unix family (including Linux) as an end-to-end working and training environment; a number of programming languages are considered: Pascal, assembly language (NASM), C, C++, Lisp, Scheme, Prolog, Hope and Tcl. The book includes information about the most important Unix system calls, including those for communication over computer networks; an introducton to the ncurses, FLTK and Tcl/Tk libraries is also given. The first volume ("Basics of Programming") includes the introductory part, which contains some historical stuff, basics of the general computer architecture and some mathematics closely related to computer science; the second part, in which the very basics of computer program creation are explained using the Pascal language; and the third part devoted to assembly language programming.

Some Features of Java Language Illustrated through Examples from Chemistry

Computer programming has been used effectively by theoretical chemists and organic chemists to solve various types of problem in chemistry. Initially the languages used for computations in chemistry were FORTRAN and BASIC. Later the Pascal language was used for solving problems in chemistry and physics. Recently the languages C and C++ and Java have been used to solve problems in chemistry. In this paper I will illustrate features of C, C++ choosing examples from chemistry. Computer programming has been used effectively by theoretical chemists and organic chemists to solve various types of problem in chemistry. Initially the languages used for computations in chemistry were FORTRAN and BASIC. Later the Pascal language was used for solving problems in chemistry and physics. Recently the languages C and C++ and Java have been used to solve problems in chemistry. In this paper I will illustrate features of C, C++ choosing examples from chemistry. Some examples presented in this these languages are Program to calculate reduced mass of homo diatomic or hetero diatomic Program to calculate the molecular weight of a tetra atomic system ABCD Program to calculate NMR frequencies of spin 1/2 nuclei only Program to calculate NMR and ESR frequencies The examples presented in Java 2 are Program to calculate unit cell dimension of a crystal Program to generate the chair form and boat form of cyclohexane. The examples presented in this monograph will help researchers in theoretical chemistry and organic chemistry to develop their own software.

A ROBUST INTEGRATED COMPUTER-AIDED DESIGN PACKAGE FOR URBAN DRAINAGE NETWORKS

This paper presents the development and verification of a computer aided design and drafting package for medium sized municipal storm water drainage systems (DRAINAGE). The numerical model, which is designed for use on microcomputers, is written in PASCAL Language and is compiled by PC software TURBO PASCAL version 6.0. The computer package for flow prediction and drainage design applies the Colebrook White Equation and the Rational Method to route pipe flows through tree-type drainage networks, automatically adjusting drainage pipe diameters to fulfil flow requirements and backwater effects. The progrmn outputs are written as DXF files which can be read and displayed readily as drawings of drainage layout plml ,md longitudinal profiles in an AutoCAD environment. DRAINAGE replaces the timeconsuming conventional method for designing stormwater drainage networks. Although the prognun is tailored for application and use in Hong Kong, it can be easily adapted to other situations.

Simulation of stationary, non-normal random process

Simulation of stationary random processes specified by spectral density function and NonNormal probability density function has been rarely studied, though these processes are often met in both theory and practice. In this paper we consider a simulation method which can apply to the mention-above processes. The main idea based on the simulation of the Normal process and approximation of functions in the space of quadratic ally integrable functions. The numerical program for illustration of the method is written by Turbo - Pascal language.