>

... Schneider¹

National Cancer Institute, Frederick Cancer Research and Development Center, Laboratory of Experimental and Computational Biology, National Cancer Institute, P. O. Box B, Building 144, Room 469, Frederick, MD 21702. email address: toms@ncifcrf.gov http://www.lecb.ncifcrf.gov/$\sim$toms/ This text originated as chapter II of my PhD thesis: ``The Information Content of Binding Sites on Nucleotide Sequences'', University of Colorado, 1984. As a U. S. government work, this document cannot be copyrighted.

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

... below²

The program to create this graph is at toms/delila/hgraph.html">http://www.lecb.ncifcrf.gov/$\sim$toms/delila/hgraph.html

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

... second.³

Shannon used the notation H_y(x), meaning the conditional uncertainty at the receiver y given the message sent from x, for what we call H_after. He also used the term ``equivocation''.

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

... graph⁴

The program to create this graph is at toms/delila/expgraph.html">http://www.lecb.ncifcrf.gov/$\sim$toms/delila/expgraph.html

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

... graph⁵

The program to create this graph toms/delila/expgraph.html">http://www.lecb.ncifcrf.gov/$\sim$toms/delila/expgraph.html

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

...$e = 2.718281828459045 \ldots$⁶

Want to impress your friends by memorizing this number? Note that after the 2.7 (you are you your own for that!) we have two 1828's followed by a 45 ${}^{\circ}$-90 ${}^{\circ}$-45 ${}^{\circ}$triangle.

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.