[JoGu]

Cryptology

A program for the WALSH transform

a7Hzq .#5r<
kÜ\as TâÆK$
ûj(Ö2 ñw%h:
Úk{4R f~`z8
¤˜Æ+Ô „&¢Dø

The program reads from standard input and writes to standard output. The output was generated by the command line

      wt < data.txt > result.txt

Input and output are in "natural order": The bit string u1u2u3u4 is represented by the integer 8u1 + 4u2 + 2u3 + u4.

cf(u1u2u3u4) = (-1)u1u2+u3u4


Author: Klaus Pommerening, 12. April 2000; last change: 30. Juli 2001.

E-Mail to Pommerening@imsd.uni-mainz.de.