A curve fitting program: Lorentzian, Sine, Exponential & Power series are available models to match your data. A Lorentzian series is recommended for real data especially for multiple peaked data. Another improved productivity example.

PTC Mathcad Express is free-for-life engineering math software. You get unlimited use of the most popular capabilities in PTC Mathcad allowing you to solve, document, share and reuse vital calculations.

KLONK Map Measurement uses lines and shapes to check one or several distances and estimate sizes of different features on Earth. With Map Measurement, you can measure the length on the ground with a line or polygon.

This statistical package helps with analysis and prevents making false assumptions. In short it makes statistics faster and easier, suitable for less experience users but advanced enough for more demanding users.

MEPX - a complex data analysis software running on Windows, Mac OSX and Linux Ubuntu. It is used for solving regression and classification problems. MEPX is based on Multi Expression Programming which generates computer programs in an automatic way.

InnoCalculator is a multipurpose and comprehensive desktop calculator for Windows. Its underling implementation encompasses high precision, sturdiness and multi-functionality.

ODEcalc (tm): An Ordinary Differential Equation (ODE) Calculator! Nonlinear ODEs. State your equation, boundary/initial value conditions & it solves your problem. Plots solution y & derivative ydot versus x. Calculus Programming demo applicatio

CalculationLaboratory - mathematical program that can work with scripts. There is support very large numbers. There is also the Builder of the graphs.

This program is - the math expressions interpreter and analyzer, the RTF formulas editor and Latex string generator: -calculation, intermediate results check, create RTF string, create latex string, save results

This is free software that adds several spline and linear interpolation functions to Microsoft Excel. It is simple to use because the new functions work just like all built-in Excel functions.