Abecedarical Systems Software

This source code enables you to plot the solutions to scientific and engineering problems. The Visual C++ programming environment was chosen for realization of numerical computation techniques. Visual C++ includes many advanced features that make it especially suitable for scientific and engineering computations. Visual C++ is also widely used; there is a wealth of information available on how to program with it. Many of the features of Visual C++ enable you to write computer programs that can perform useful numerical computations. It includes an extensive set of mathematical functions. You may define classes of data together with methods to perform abstract operations such as vector and matrix arithmetic. A new project can be set up in the Visual C++ 6.0 environment using the following steps: Select New from File menu. In the New dialog box select "Win32 Application" and enter a project name. Then press the "Ok" button. In the Win32 Application dialog box select "A simple Win32 Application" then press the "Finish" button. Press "Ok" in the New Project Information dialog box. Open the *.cpp file for entry of the program. (We do not edit StdAfx.h or StdAfx.cpp; VC++ requires these files.) Enter, or copy, the following code into the empty application source file created using the process above. Here, the plotter class files are stored in a common directory so that they can be re-used for several plotting programs. You must add the plotter source file plotter.cpp to the Visual C++ project in order for the program to compile and link successfully.

Keywords: graphics plot solutions differential equations time calculation

TimeWarp for DOS

time-warp (noun) A hypothetical discontinuity or distortion occurring in the flow of time that would move events from one time interval to another or suspend the passage of time. The TimeWarp utility sets your computer''s time for your time zone from a master atomic clock using a modem. Timing messages from either the United States Naval Observatory (USNO) or the National Institute of Science and Technology may be used. It gives you the capability to set your computer''s clock to official US date and time in your time zone. It requires MS-DOS and a telephone modem on an IBM-PC compatible.

Keywords: utility time date microsoft outlook 2000

Spreadsheet Calculator (SCalc) for UNIX

SCalc is a simple spread sheet program. The user interface applies the UNIX curses library for control of a terminal screen in text mode. This program was developed using the GNU C++ compiler and related tools. Limitations in SCalc -- The screen does not scroll. The entire spread sheet is the size of the terminal screen with five columns, A to E, and nine rows 1 to 9. -- Numbers are double precision floating point and are displayed in scientific format or in floating point format. -- Column widths will are fixed at 14 spaces. Text that exceeds the column width is clipped in the cell view. Numerical data in scientific format should always fit this space. -- The user cannot copy from cells to other cells, insert or delete lines or columns, of change cell widths. Some features of SCalc -- Built in mathematical functions abs, cos, ln, exp, ... -- Features for saving and loading spread sheets to and from disk -- Capability to clear spread sheets -- Features for automatically or manually re-calculate cell values

Keywords: spread sheet curses unix time updates

TimeWarp

The TimeWarp utility sets your computer's clock from a time server using the Simple Network Time Protocol (SNTP). Using your computer's internet connection, timing messages from an SNTP time server can be obtained automatically to set your computer clock. TimeWarp operates in unicast mode where it sends a message to a time server and waits for a reply. The computer clock is set to the correct universal time, which is the time at the Greenwich meridian. TimeWarp assumes that you have set your computer clock to the correct time zone. Using the round trip time from request to receipt, a simple calculation determines the propagation delay between the server and client so that your computer clock can be aligned to within a few tens of milliseconds of the correct time.

Keywords: simple network time protocol sntp clock utility setting computers clock using internet time source altova xmlspy

Zeno Interpreter

This application is an interpreter for the Zeno computer programming languare. It requires Microsoft Windows 95 or later. It includes a text editor for creating, saving, and printing programs. The on-line Help feature includes a tutorial on the Zeno computer programming language and operating instructions for the interpreter. The Zeno programming language is easy to learn and user friendly. It is more like natural English than most other computer languages and this makes a Zeno program easy to write and easy to understand. The Zeno interpreter allows anyone to learn and quickly master structured programming methods. It may also be used for performing complex numerical calculations. A Zeno program is modular. The program module defines both the start and end of a program. All executable statements are contained within this module or within subprogram modules. Subprograms, procedures and functions, are used to create a program from small manageable pieces. Zeno allows you to define procedure modules and function modules as needed for your programs. The Zeno programming language supports a variety of data types. You may declare named variables and named constants; you may define your own data type using a type definition. Zeno has only two numerical data types; integers and floating point numbers. It has a boolean type, a character type, and a string type. It supports an array type, a record type and an enumerated type which you the programmer define. Global variable declarations and data type definitions must be located outside of the program and any subprogram modules. Declarations are limited to the scope in which they are defined.

Keywords: programming education computer interpreter interpreter zeno programming language includes text editor help progress rate

T Interpreter

Welcome to T. This is an easy to learn, user friendly, high level, computer programming language. T is more like natural English than most other computer languages and this makes a T program both easy to write and easy to understand. No prior programming experience is required. T is generic in the sense that it contains most of the essential elements used in other languages. If you already know how to program in another language, T should be easy for you to master. The interpreter, with its built-in debugging tools, will allow you to learn good programming techniques. Included with the interpreter is an editor and an on-line language reference program. Together, these create an environment for you to learn to program in T. The interpreter, with the editor and language reference, can be operated from any IBM PC or compatible computer. This manual contains operating instructions for the interpreter, editor, and language reference. It also includes a tutorial on the T programming language. To learn a computer language you should program; examples are provided in this manual that you should try out and modify as self-learning exercises.

Keywords: programming languages interpreter uninstall internet explorer

Xref a utility program

Xref is a utility program which creates a file containing the locations of identifiers used in your C and C++ programs. It sorts identifiers by name, source file, and line number. This utility runs on an IBM PC with MS-DOS. The program is a command line utility used as follows: xref [-]filename.ext { [-]filename.ext } The - indicates that a file is a list of files. One or more files can be placed on the command line. If there are no command line arguments, the program prompts for a file name. At the prompt, only one file name is accepted; it can be a file containing a list of file names. As each file is processed, the message: "Processed filename" is displayed. When the operation is complete, the cross reference table is written to a file titled "xref.out" in the local directory. Any previous output file is overwritten. The file is in DOS text format.

Keywords: cross reference utility c/c++ program application

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