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

3.23 MB

Publisher Description

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.

Program Details


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


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

» version 1.4   -   posted on 2008-02-29


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

Please read the terms and conditions of this End-User License Agreement carefully before installing and using this application. The developer of this application, Rituraj Kalita (a resident of Gandhi Mandap Road, South Sarania, Guwahati - 781007, Assam, India), and/ or his licensors/ inheritors (to be henceforth called the developer) is willing to license this application software to you as the individual, the company or the legal entity (to be henceforth called You) only on the condition that You accept all the terms and conditions of this License Agreement. By virtue of Installing and/ or using this application called Power-Surface, You will be considered to have accepted this Agreement in full. If You do not agree to any of its terms, do not install this software, or uninstall it. If You accept the Agreement, You will be supposed to have accepted it not only in letters but also in spirit.

The application software that accompanies this license (to be called "Software") is the property of the developer, and is protected by Indian copyright laws as well as the international treaties. While the developer continues to own the Software, You will also have some rights to use the Software after Your acceptance of this license. This license governs any releases, revisions, or enhancements to the Software that the developer may furnish to You. The terms and conditions that You become bound to after Your acceptance of this License Agreement about the use of this Software are as follows:

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Downloads last week: 0
Size: 3.23 MB
Price: N/A
Release Date: 2008-02-29
Publisher: eastern-star-software
Operating System: windows