Power-Surface: Power-Series LSq-Fitting & Saw-File 1.4

3.23 MB

Publisher Description

Power-Surface: Power-Series LSq-Fitting & Saw-File is a free software application from the Other subcategory, part of the Education category. The app is currently available in English and it was last updated on 2008-02-29. The program can be installed on Windows.

Power-Surface offers linear/ quadratic/ higher-power least-square curve/ surface fitting for the given column-wise numeric data for a function z = f(x) or z = f(x,y) of one or two independent variable(s), so that the fitted function is of the form z = a + b.x + c.x2 +... or z = a + b.x + c.y + d.x2 + e.xy + f.y2 +... respectively. To perform the fitting, the aforesaid algebraic power series function is assumed, and then the sum of the squares of deviations of z-values (for the given points) from the assumed function-value is minimized, thereby generating a set of linear simultaneous equations. This set is then auto-solved by standard Gaussian-elimination method, giving the fitting parameters (coefficients) a, b, c etc. (users should refer to the tutorials). To avoid calculation errors, constant factors and decimal-points in the given (x,y,z) data are first shifted but finally re-corrected. The Saw-File subroutine allows vertical copying/pasting of numeric data columns from text files.

Power-Surface: Power-Series LSq-Fitting & Saw-File (version 1.4) has a file size of 3.23 MB and is available for download from our website. Just click the green Download button above to start. Until now the program was downloaded 152 times. We already checked that the download link to be safe, however for your own protection we recommend that you scan the downloaded software with your antivirus.

Program Details


Publisher eastern-star-software
Released Date 2008-02-29
Languages English


Category Education
Subcategory Other

System requirements

Operating systems windows

Download information

File size 3.23 MB
Total downloads 152


License model Free
Price N/A

Version History

Here you can find the changelog of Power-Surface: Power-Series LSq-Fitting & Saw-File since it was posted on our website on 2010-06-28. The latest version is 1.4 and it was updated on soft112.com on 2017-02-18. See below the changes in each version:

version 1.4

posted on 2008-02-29

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Release Date: 2008-02-29
Publisher: eastern-star-software
Operating System: windows