SAMPLE: EIGEN - Sample Application

PSS ID Number: Q103338
Article last modified on 08-25-1993

3.10
WINDOWS

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The information in this article applies to:

 - Microsoft Windows Software Development Kit (SDK) for Windows
   version 3.1
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EIGEN: Calculates Unique Vector (Eigenvector) for a Matrix
Scientists and engineers who work with matrices use an eigenvalue
calculator to calculate the unique vector (eigenvector) for a given
matrix.
The EIGEN sample provides an eigenvalue calculator created with
Microsoft® Visual Basic™ and Microsoft FORTRAN version 5.1. EIGEN
calls a Microsoft Windows™ dynamic- link library (DLL) written in
FORTRAN. The EIGEN.FOR file contains the code for the DLL. FORTRAN's
ability to handle multi-dimensional arrays makes it possible to
calculate the eigenvector easily.
EIGEN demonstrates how easy it is to attach a graphical front-end to
an existing FORTRAN algorithm and thus leverage existing code to
create new Windows-based applications. Visual Basic's strong DLL
support and parameter-passing makes this possible.
EIGEN was built and tested under Microsoft Windows version 3.1 and
Visual Basic version 3.0.
KEYWORDS: CD4
For Microsoft OnLine customers, EIGEN is available in the
Software/Data Library as 4X67.ZIP and can be found by searching on the
word EIGEN, the Q number of this article, or S14269. For CompuServe
Customers, EIGEN can be downloaded from the file 4-67.ZIP in library
section number 4 of the MSDNLIB forum. EIGEN was archived using the
PKware file-compression utility.

Additional reference words: 3.10
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Copyright Microsoft Corporation 1993.