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Polynomial & Math Calculator: Mates8Mathematical expression parser and evaluator Mates8 is the downloadable version of the Online Polynomial and Scientific Calculator. Mates8 features:
» Basic arithmetic and polynomial operations (-,+,*,/,^,%), including GCD » finds polynomials roots, of real or complex coefficients, » does multivariable polynomial division, » Lagrangian interpolation and » basic matrix operations (-,+,*,/,^). » May obtain the inverse matrix, » cofactor, » adjoint, » transpose matrix, » echelon form, » Jordan form, » eigenvalues, » eigenvectors, and » the determinant of an invertible matrix of real, complex, polynomial or expression entries. » Performs derivatives using Euler's notation, e.g.: Dx(sin(x)); » Jacobian; » approximates the exponential matrix (e.g. exp(1,cos(x)|0,1)=(2.718..,2.718...*cos(x)|0,2.718...)) » Resolves linear, when compatible and determinate or indeterminate, » as non linear system of equations. » Also, is capable of bounded definite integrals, » inmediate, » trigonometric or » partial fractions integration -quotients of polynomials integration- and » integration by parts. » Solve some ordinary first order differential equations with or without specifying the initial condition. » Approximates first order diff. eqs. by Euler's method specifying the initial condition.
Mates8 intends to be an improved version of previous Mates2-Mates6 calculators. Full (and free) source code download. If you have any comments or suggestions, please leave them here.




Updated: 2022/03/05 Polynomial & Scientific Calculator (v8.4.194) Polynomial & Scientific Calculator's full source code (v8.3.192) Updated: 2023/05/30 Math10 Computer Algebra System (CAS calculator) Math10 CAS Calculator full source code Updated: 2021/02/23 (v8.3.192) Polyn. & Sci. Calculator's .dll library for .Net programmingAlso, contains .tbl file for Visual Basic 6. Test Project for .Net programming to RPN converter (ASP.NET)
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Polynomial Calculator in Excel WorkbookPolynomial calculator, coded in VB.NET; Renewed math parser and evaluator, extensive use of Regex. Free source code contains Complex, Vector, Matrix and more revised classes. Full source code download. Last update: 2021/02/23 (v8.3.192)


If you have any comments or suggestions, please leave them here.
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Windipoles Windipoles is a free passive filter simulator. It is a Windows .NET executable, so no software installation is required and works in Win32 and Win64 machines. It enables design, analysis, optimizations and plots, all graphically. While component values are changed, graphic windows are updated instantly. Graphics may show, overlapped, more than one network for comparing purposes. Also, synthesizes Butterworth, Bessel, Chebyshev (types I & II), and Cauer (elliptic) filters. Windipoles has a help .chm file. Also it does not connect to internet and needs no special rights to execute. Current version is v4.8.8.zip. If you have any comments or suggestions, please leave them here.
 Rate Windipoles @ dxzone.com
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Winfonts displays fonts of characters (installed or not in Windows). Ver. 1.0.2

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TimezonesCurrent local time and date in every time zone. Last update: 2014/04/29 Add a new clock (time zone) by selecting a row.Select a row (i.e. the entire row, not a specific column) clicking on the left-most of the row. Multiple rows selection is possible clicking while control key (or shift key) is pressed: just like in Windows' Explorer (https://windows.microsoft.com/en-us/windows/select-multiple-files-folders#1TC=windows-7) Works in any Windows version >= "Win2000". For versions prior to XP SP2 be sure .NETv2.0 framework is installed or install the framework.  If you have any comments or suggestions, please leave them here.
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PdfSharp and Excel reporting sampleA VStudio Express 2013 for Web project The .vb file names ending in "pdf" invoke pdfsharp.dll. The ones ending in "xls" correspond to the "pdf" ones with same sufix and the output format is an Excel Workbook. Note there are two font files (.ttf) to ensure the .pdf file contains embedded the required font. You'll need to change the paths, the web reference, fields and anything else required to your needs. If you have any comments or suggestions, please leave them here.
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Execute Macros In Word Documents In FolderExecute existent Macros in all Word Documents that are placed inside a same folder. Click here to show App's Help menu When EXECUTE macro option is selected:
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1. If you have a macro enabled document skip to point 4.
2. Open a blank Word document.
3. Save as Macro enabled Word document (*.dotm or *.dotm)
Let’s say you save with the name doc1.dotm
4. In this application click button "Macros" and open
a macro enabled Word document (doc1.dotm or the name you have given to it).
5. If there are pre-existent macros in ThisDocument will appear in the textbox.
6. Add any new macro with one Document parameter as in:
Sub DeleteSpellingErrors(doc As Document)
Dim cnt, i As Long
Dim cur, Last As Range
Do
cnt = doc.Range.SpellingErrors.Count
If cnt <= 0 Then Exit Do
Set Last = doc.GoTo(What:=wdGoToSpellingError, Which:=wdGoToLast)
Set cur = doc.GoTo(What:=wdGoToSpellingError, Which:=wdGoToFirst)
For i = 1 To cnt
cur.Select
cur.Delete
'Debug.Print cnt & " " & i
Set cur = doc.GoTo(What:=wdGoToSpellingError, Which:=wdGoToNext)
DoEvents
i = i + 1
Next
Loop
End Sub
5. Clicking "Accept" will close the dialog and fill
the combo box with the name of the macros.
6. Select a macro or type in the combo box.
7. On the right side of the form click the button "..." and browse
to a folder containing the Word documents to which execute the macro.
8. Check subfolders if there are also documents contained in subfolders to execute.
9. Click Start.
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On the other hand, option 'DeleteSpellingErrors' will need
a folder path with Word documents to which
delete all the spelling errors.
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Advanced use.
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You may employ extra parameters (up to 29 extra parameters,
30 in total counting the always needed 'doc' parameter).
For example, if you add this macro to replace matching
strings of 'str'contents by 'byStr' contents, you would
type in the combo's text box: replace("he","Smith, John")
Note: you do not have to write 'doc' parameter, just the
extra parameters.
Sub replace(doc As Document, str, byStr) ' here 'doc' is mandatory
doc.Content.Select
With Selection.Find
.Forward = True
.MatchCase = True
.Text = str
.Replacement.Text = byStr
.Execute replace:=wdReplaceAll, Forward:=True, _
Wrap:=wdFindContinue
End With
End Sub Last update: 2022/02/21 If you have any comments or suggestions, please leave them here.

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