| Scientific calculator - ScienCalc |
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Find values for your equations in seconds
Scientific calculator gives students, teachers, scientists and engineers the power to find values for even the most complex equation set. You can build equation set, which can include a wide array of linear and nonlinear models for any application:
- Linear equations
- Polynomial and rational equations
- Nonlinear exponential, logarithmic and power equations
- Pre-defined mathematical and physical constants
Understandable and convenient interface
A flexible work area lets you type in your equations directly. It is as simple as a regular text editor. Annotate, edit and repeat your calculations in the work area. You can also paste your equations into the editor panel.
History of all calculations done during a session can be viewed. Print your work for later use. Comprehensive online help is easily accessed within the program.
| Multivariable calculator - SimplexCalc |
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Get solution for a mathematical expression quickly
SimplexCalc is a multivariable desktop calculator for Windows. It can be used as an enhanced elementary, scientific, financial or expression calculator.
In addition to arithmetic operation, more than hundred built-in constants and functions can also be used in your expression.
SimplexCalc also has the unlimited ability to extend itself by using custom (user-defined) variables. You can add your own variables for SimplexCalc in order to tackle complex problems with ease and fun. Even you can compile formula once and then calculate the result many times with different variable values.
Simple and user-friendly interface
SimplexCalc is small and simple to use but with much power and versatility underneath. Features include:
- Scientific calculations and unlimited expression length
- Unlimited customizable variables
- Parenthesis compatible and unlimited nesting for expression
- Upper case and lower case can be freely used in expression
- History of calculation sessions
- You can do standard manipulation with "Formula" edit-panel such as cut, copy and paste operations
For example in finance, a general equation for calculating Future Value of Money is expressed as:
FVn = P * (1 + k/m)(m*n)
Assigning variables: p;k;m;n
Formula: p*power((1+k/m);(m*n))
Where:
P is the initial principal, or present value
k is the annual rate of interest
n is the number of periods - typically years - over which money earns a return
m is the number of times per year interest is compounded
| Multipurpose calculator - MultiplexCalc |
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Solve mathematical expression at high speed
MultiplexCalc is a multipurpose and comprehensive desktop calculator for Windows. It contains more than 100 mathematical functions and constants to satisfy your needs to solve problems ranging from simple elementary algebra to complex equations. Its underling implementation encompasses high precision, sturdiness and multi-functionality.
MultiplexCalc also has the unlimited ability to extend itself by using user-defined variables. You can add your own variables to MultiplexCalc in order to convenience your work. Any instance of a formula can be parsed once, and calculated many times with different variable values.
Features include:
- Ease of use
- Unlimited number of variable definitions
- Scientific calculations and unlimited expression length
- Parenthesis compatible and unlimited nesting for expression
- Both expression editing and button-clicking functionality
- Clipboard smart functionality (cut, copy and paste operations)
| Compact calculator - CompactCalc |
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Solve algebraic, linear and nonlinear equations
CompactCalc is an enhanced scientific calculator for Windows with an expression editor. It embodies generic floating-point routines, hyperbolic and transcendental routines. With the brilliant designs and powerful features of CompactCalc, you can bring spectacular results to your calculating routines.
CompactCalc features include the following:
- You can build linear, polynomial and nonlinear equation set
- Scientific calculations and unlimited expression length
- Parenthesis compatible and unlimited nesting for expression
- High precision calculation - features up to 38 digits after the decimal point
- Accurate result display - features up to 24 digits after the decimal point
- Calculation range (1.79E-308, 2.22E308)
- Comprehensive help
- Possibility to enter mathematical formulas as with a keyboard as with button-panel
- CompactCalc has almost hundred of physical constants and math formula built in, which can be easily accessed and used in calculations. No longer do you have to search the physic textbook for that common formula or physical constant data.
| Nonlinear regression analysis- DataFitting |
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Quickly Find the Best Equations
that Describe Your Data
DataFitting gives engineers and researchers the power
to find the ideal model for even the most complex data, by putting a large number of
equations at their fingertips. DataFitting's built-in library includes
a wide array of linear and nonlinear models from
simple linear equations to high order polynomials. DataFitting has the following capabilities:
- A 38-digit precision math emulator for properly fitting high order polynomials and
rationals.
- A robust fitting capability for nonlinear fitting that effectively copes with outliers
and a wide dynamic Y data range.
Graphically Review Curve Fit Results
Once your data have been fit, DataFitting automatically sorts and plots the fitted equations
by the statistical criteria of Standard Error. You can preview your graph and output
publication-quality graphs in several different configurations. A residual graph
as well as parameter output is generated for the selected fitted equation. Data,
statistical and numeric summaries are also available from within the report-panel.
The software presented on
these pages are for Save-the-Children charity.
Copyright © 2010 Larry Nylund
Institute of Mathematics and Statistics
Helsinki, Finland
All Rights Reserved
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