Some scientific and industral applications use my C source code libraries.

Mirek Soja's Website

Changing the world, one line of code at a time…

Document Protecting Published E-Mail Addresses Against E-Mail Spider Systems. (Part One)
by Miroslaw M. Soja
First Published: November 10th, 2003

Abstract
     In this article I present simple PHP functions that help protecting e-mail addresses published at web pages against being collected by e-mail harvesting programs.


Document Protecting Published E-Mail Addresses Against E-Mail Spider Systems. (Part Two)
by Miroslaw M. Soja
First Published: April 6th, 2004

Abstract
     In this article I propose an alternative method that does not require coding in PHP -- the code is written Java Script.


Document Fast Swap Values Between Two Variables in C
by Miroslaw M. Soja
First Published: September 1st, 2002

Abstract
     In this article I present a basic logical operation XOR and its amazing application in fast swapping of two numerical variables.


Document The R-Combination Generator in C
by Miroslaw M. Soja
First Published: July 1992.
Revised on November 10th, 2003.

Abstract
     In this article I present the C source code that provides interesting combinatorial functionality - it generates all possible combinations of N distinct elements selected into R element subsets. However, before getting into the code, I review two important concepts used in the code: combinations and lexicographical order.


Document The N-Permutation Generator in C
by Miroslaw M. Soja
First Published: August 1992.
Revised on November 10th, 2003.

Abstract
     In this article I present a code that provides interesting combinatorial functionality - it generates all possible permutations of N distinct elements in lexicographical order.


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