Tag Archives: VBA

Using Regasm.exe

Posted on 13/11/2012 by dougaj4

If you work through the process described in the previous post Visual Studio will create two files (ALMatrixLib.tlb and ALMatrixLib.dll) that will automatically be registered so that the Excel VBA routines will be able to use them.  On the other hand if … Continue reading →

Posted in Excel, Link to dll, UDFs, VBA | Tagged , , , , , | 7 Comments

Compiled Matrix Functions for Excel

Posted on 12/11/2012 by dougaj4

This is a follow on from the previous post, showing how the C# version of the ALGLIB maths library can be accessed from Excel, with very little additional coding.  The download file, Matrixdll-c#.zip includes compiled .dll and .tlb files which can be used … Continue reading →

Posted in AlgLib, Arrays, Excel, Finite Element Analysis, Frame Analysis, Link to dll, Maths, Newton, UDFs, VBA | Tagged , , , , , , , , , , , | 4 Comments

Links to link VBA to C#

Posted on 03/11/2012 by dougaj4

If you search the Internet for information on how to link Excel VBA to C# you will find thousands, if not millions, of links with details of how to connect to Excel from C#, but very few about going the … Continue reading →

Posted in Excel, Link to dll, VBA | Tagged , , , , , | 11 Comments

Polynomial Update

Posted on 30/10/2012 by dougaj4

Following a comment here: Solving cubic and quartic equations with Excel the Quartic and CubicC User Defined Functions (UDFs) have been amended to fix a problem occurring with some combinations of coefficients. The updated spreadsheet (including full open source code) can be … Continue reading →

Posted in Excel, Maths, Newton, UDFs, VBA | Tagged , , , , , , , | 12 Comments

Mohr’s Circle and Plate Stresses and Actions

Posted on 27/10/2012 by dougaj4

The functions described in this post can be found in the download file PlateStress.zip, including examples and full open source code. The function MCircle returns the plane stress components (XX, YY and XY stress) for any specified stress field, when rotated through a … Continue reading →

Posted in Arrays, Beam Bending, Excel, Finite Element Analysis, Frame Analysis, Newton, Strand7, UDFs, VBA | Tagged , , , , , , | 1 Comment