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DISLIN is a high-level library of subroutines and functions that display data graphically. It is intended to be a powerful and easy to use software package for programmers and scientists that does not require knowledge of hardware features. The software is available for the programming languages C, Fortran 77, Fortran 90, Perl, Python and Java. DISLIN can display graphic information directly on graphic terminals or store them in metafiles. The supported display types are VGA, X Windows, Windows API and Tektronix. The supported file formats are GKSLIN, CGM, HPGL, PostScript, PDF, Prescribe, WMF, PNG and TIFF. The library contains the following features:
- 9 software fonts where each font provides 6 alphabets. Hardware fonts for PostScript printers, X11 fonts for X11 displays and TrueType fonts for Windows 95/98/NT displays and WMF files can also be used. The different aphabets contain Roman, Greek, Russian, mathematical and special European characters. Plotting of mathematical formulas with TeX instructions.
- Plotting of two- and three-dimensional axis systems. Axes can be linearly or logarithmically scaled and labeled with linear, logarithmic, date, time, map and user-defined formats.
- Plotting of curves. Several curves can appear in one axis system and can be differentiated by colour, line style and pattern. Multiple axis systems can be displayed on a page.
- Plotting of legends.
- Elementary plot routines for lines, vectors and outlined or filled regions such as rectangles, circles, arcs, ellipses and polygons.
- Shielded regions can be defined.
- Business graphics.
- 3-D colour graphics.
- 3-D graphics.
- Elementary image routines.
- Geographical projections and plotting of maps.
- Contouring.
- Graphical user interface (GUI) routines based on Motif and Windows API functions.
- English manuals in PostScript, PDF and HTML format are available.
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Unique interactive multimedia Chemistry teaching software that tests students as they learn. Topics covered include: elements, atoms and molecules, word equations, chemical symbols, Periodic Table and chemical formulas. Plus interactive simulations to teach the balancing of chemical equations and the formulas of ionic compounds. As far as possible, skills are taught through familiar examples, to help reinforce general chemical knowledge. Written by a teacher for use in schools, but an excellent personal tutor for anyone beginning to study Chemistry. Questions constantly test understanding and hints are given when answers are wrong.
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JUnitConv is an universal Units of Measure Converter, it converts numbers from one unit of measure to another.
Built as a Java Applet, JUnitConv is platform-independent and highly-configurable, it supports an unlimited number of Units Categories, Units of Measure and Multiplier Prefixes that could be customized using external text files. You could setup your own data files using your preferred spoken language, units categories, units definitions and multiplier prefixes. The default configuration data files contains 580 basic units of measure definitions divided in 31 categories and 27 multiplier prefixes for a total of 15660 composed units.
Main Features:
- browser-independent, works fine with any browser that support at least Java 1.1;
- 580 basic units of measure definitions divided in 31 categories and 27 multiplier prefixes;
- customizables units, categories, multipliers and labels using external text files;
- supports units descriptions, used to display units definitions and history (if available);
- supports multiplier prefixes;
- supports basic formulas as units conversion parameters;
- supports result precision (max number of decimal places);
- customizables charset encoding, supports international character sets (require appropriate OS/browsers);
- customizables background and foreground colors;
- customizables font type, style and size;
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If you have any type of investments or stocks, you may often wish to know the real rate at which your money is growing. This calculator calculates the compound interest rate based on dates of all your previous investments and the current balance. By knowing the growth rates for different periods of time, you may decide to fine-tune your investment strategy.
In addition, the calculator provides account management by storing multiple account information with reminders. The account can be assigned in any currency. Find the consolidated account balance in any currency. These features will make the calculator useful for long-term usage.
To calculate the real interest rate, enter all the previous investment information (date of investment and the amount of investment). Then, enter the current date and balance, and the rate calculator will calculate the interest rate! It is that simple! You can also use this calculator for calculating your interest rate between the two periods to see the performance in that period. This can be creatively used for determining weekly, monthly, quarterly, or yearly interest rates.
The calculator also makes a projection of your investment accumulated, in say 10 years. The projection is flexible to include a regular periodic investments and tax. This gives you a more realistic projection.
The authors of this software believe that magic of compound interest on investments and right portfolio is one of the great ways to get good returns in 10-20 years. The authors with good background in mathematics and computers have created this calculator for their use! The free shareware version has enough goodies to make you excited about investments. So try it and register it only if you like the software!
The Help file describes the working of the Rate Calculator, the magic of compound interest, some tips and links. For mathematically savvy persons, we describe the mathematical formulas used in calculating rates and projection.
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GraphiCal is a programmable graphics calculator which lets you visualize expressions and formulas in cartesian or polar formas graphs in a chart. The program can create animated video clips from a sequence of graphs which you can view with the integrated or any other media player. GraphiCal has more than 50 built-in mathematical functions, and can integrate and find roots and extrema of functions. It is programmable, with user-defined variables and functions. GraphiCal offers DLL programming interfaces for VB and VC, has a very user-friendly graphics system and because it runs compiled code, it is very fast.
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#Calculation Control - The Powerful Calculation Engine
#Calculation is an ActiveX control designed for VB6/VB.net/VC++/VJ++/VC#.net. It is a powerful calculation engine for your applications. This ActiveX control integrates expression parsing and evaluating. Generally speaking, #Calculation control is useful in two general areas: first, when a formula has to be defined and evaluated at runtime (for example, if the end user is allowed to enter a formula that will be evaluated and used); second, when a set of formulas that depend on each other are defined, configured, and evaluated at run-time. #Calculation control supports conventional math operators and functions and is suitable for heavy-duty number crunching. It also allows defining variables and sets of related formulas that implement spreadsheet-like recalculations. Even it can support note-line, different number system and custom-functions in your expression. The powerful calculation ability, various functions, and the different modes of work give power and flexibility.
Enable advanced calculations in your accounting or spreadsheet applications. All these are very EASY!
Here is just a short list of control's major features:
-Arithmetic, Logic, Relation and Bitwise operation
-Many Built-In Functions and Constants
-Alias for operators and functions, eg."sh" and "hsin" is the same function
-Unlimited nesting for expression
-Auto detect errors
-Table/Array operation support
-"Simulate the exact value" operation
-Two kinds of return value - string and numerical value
-Upper case and lower case can be mixedly used in the expression
-Ansi chars and some unicode chars can be used in the expression
-Scientific notation for numerical value
-Note-line can be used in the expression you want to evaluate
-Custom variable and function can be created by the control and be used in the expression
-"Round Operation" according to the appointed bits
-mixed operation for Bin, Oct, Dec and HEX number
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CalculatorX is an enhanced expression calculator. It can evaluate an expression for one time. You can use Arithmetic, Logic, Bitwise and Relation operations in your expression. And many system constants and built-in functions can also be used in the expression. CalculatorX even supports the custom variables, custom functions and note-line. You can use Binary, Octal, Decimal and HEXadecimal numbers in one expression to evaluate as well.
CalculatorX has the unlimited ability to extend itself by using Custom Functions. You can add your own functions to CalculatorX in order to convenience your work.
CalculatorX is powerful, but it is very easy to use. You can use it as any calculators you have used.
Make Work Easy and High Efficiency by using CalculatorX.
Here is just a short list of CalculatorX's major features:
- Arithmetic operation
- Logic and Bitwise operation
- Relation operation
- Built-In Functions
- Constant support, such as PI, E, TRUE, FALSE etc.
- Alias for operators and functions, eg."sh" and "hsin" is the same function
- Unlimited nesting for expression
- The mixed operation for Binary, Octal, Decimal and HEXadecimal numbers
- Table/Array operation support
- "Simulate the exact value" operation
- Scientific notation for numerical value
- Custom variable support
- Note-line support
- Custom function support
- Upper case and lower case can be mixedly used in the expression
- Historical expressions log
- XP appearance support (in WinXP)
- Quick reference for input
- Base-N(2,8,10,16) results show
- Expressions manager support
- 'Auto Round Operation' according to the appointed bits
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