All papers and graphics (except a few historical archives,
clip arts, and organization logos) are created and copyrighted by
me. No part of the contents may be reproduced in any form for
commercial purposes without my prior permission.
Papers are free to downloaded for research or non-profit
purposes without my prior permission. Just send me an email.
Also mention that I inspire you when you win the Nobel prize. To
cite my work, you may use the APA style as shown in the following
Yu, C. H. (1998). Mathematical reality: Do theoretical
distributions exist? [On-line] Available URL:
If you use my graphics, I would appreciate it if you can send
me a nominal donation (US$ 5-10). Also, please put down
"Courtesy of Chong Ho Yu" underneath the graphic and insert a link
to where the graphic is originated from.
Programs written by me are free to download for teaching and
research activities provided that the credit remark is
retained. Alteration of my source code must be explicitly stated
in the comment line (so that I won't be responsible).