XL-Plot 2.99

The primary purpose of XL-Plot is to create a figure rapidly. It is ideal for for use at high school, as the path from data in one or more spreadsheet columns to the final figure is short (just a few mouse clicks) and easy to grasp.
It contains basic statistical functions, such as Students t-test and linear correlation of two sets of data (two columns in a spreadsheet). XL-Plot has a number of build-in functions that can be fitted to the data in columns on a spreadsheet or to a curve in a graph. The user can easily add fitting functions of his own design.
Additional options are Fourier transformation, (de-)convolution, eigen decomposition and matrix inversion.
Features.

Simple, intuitive "visual" program layout.
Fast: No useless options, few dialogue windows, lots of short-cuts and hence a minimum of mouseclicking to do, resulting in a gain of time.
The program is build around two types of window each having its own menu:
1) Windows showing vector drawings (drawing sheets).
2) Windows showing columns of numerical data (spreadsheets).
Items in the last two types of window may communicate such that a modification in a column in a spreadsheet results in a change in the associated vector graph, allowing easy editing.
By using copy and paste functions from the menu, data from either window may be copied to a spreadsheet or to a drawing sheet resulting in a column of numbers or a graph respectively.
The math library contains many useful functions such as convolution and deconvolution, Fourier transform, matrix inversion and eigen decomposition of a matrix.
Statistical tests for data in spreadsheet columns: linear correlation, chi-2 test, Students t-test, Fishers F-test, Tukeys q-test (one-way anova).
Bitmaps may be imported and manipulated on the drawing sheet.
Graphics may be exported to other vector drawing programs.