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LeoCalculator is an application for performing calculation of mathematical expressions these could include not only basic operations but also functions and brackets. LeoCalculator also permits to use of predefined variables.

Graphing software for scientists, engineers, and students. It features multiple scaling types, including linear, logarithmic, and probability scales, as well as several special purpose XY graphs and contour plots of 3D data.

Add, Subtract, Divide and Multiply fractions.Convert a decimal to a fraction or a fraction to a decimal. Quick and easy interface. No confusing menus. This unique program converts decimals to fractions. Great for school or work. Handy for STOCK quote

Lite version converts several units of length. Plus version converts length, weight and capacity measures. By typing a number into box provided will instantly display the results without the user having to search through a confusing menu of choices.

Calculate the percentage of any number out of any number. Great little tool to have on anyones desktop.