Downloads

• Differential Directory, indexing method

  • Retrieves the differentiating bit of a key with respect to the previous one and stores only this position in the index.
  • With at most one single disk read, assuming the index is in memory, it determines whether the key exists or not.
  • The index is always sorted and therefore requires no reorganization.
  • Performance is proportional to the length of the keys, not to the size of the index.
  • Insertions require updating at most two or three nodes.

A video demonstration of DiDi is also available:

© X.R. Junqué, since 1993

This indexing method is registered with the Intellectual Property Office, with permanent validity.

The application and its contents may be used freely by individuals, students, and educational institutions, provided proper credit is given to the author.

If you wish to include this method in commercial products, please get in touch.

Contributions, suggestions, and improvements that may benefit other users are welcome.

• Console ReadLine Intercept App

Console.ReadLine(true) enables the class presented here to intercept keys —including cursor, function, and modifier keys— making menu coding and input management easier.

• MathML to/from Plain Text String Converter

Converts online MathML coded string to/from plain text string.

 

• WinDipoles

WinDipoles WinDipoles

WinDipoles is a free passive filter simulator that allows you to design, analyze, optimize, and generate plots—all through a user-friendly graphical Interface. As you adjust component values, the graphical windows update instantly, providing real-time feedback. You can also compare multiple networks by overlaying their plots on the same graph.



• Execute Macros in Word Documents within a Folder

Runs current macro in all Word documents located in the same folder.

extra parameters

Execute macros application download

• Mates8

This is my classic Polynomials And Scientific Calculator. It can perform a wide range of operations, including polynomial arithmetic (+, -, *, /), root finding, as well as logarithmic, trigonometric, and exponential functions. You can also define custom functions and work within the realm of real or complex numbers. The calculator includes built-in constants like 'π' and 'e', and supports binary, octal, and hexadecimal inputs by using the prefixes &b, &o, and &h, respectively.

Additional features include calculus operations such as derivatives, integrals, and Lagrange interpolation, as well as matrix operations or solving of systems of equations and differential equations. For guidance, you can refer to examples or view intermediate steps when available.


• Improving the Like Operator in VB.NET: LikeOperatorB

The Like operator in VB.NET is widely used for pattern matching in strings.

However, it has some inconsistencies, especially when handling diacritics and string expansion. LikeOperatorB, a revised version of the LikeString operator, is optimized for better performance and improved string comparison accuracy.

 

 

• WinSpectrum III for tiny SA Ultra+, tiny SA Ultra and tiny SA

For Windows 10 and Windows 11 (64 bits)

 

For Windows (32 bits)

Requires .NET 2.0

 


2025 - X.R. Junqué's website