The function

It has a Maximum at , where

and inflection points at and , where

(1) |

**References**

Abramowitz, M. and Stegun, C. A. (Eds.). ``Planck's Radiation Function.'' §27.2 in
*Handbook of Mathematical Functions with Formulas, Graphs, and Mathematical Tables, 9th printing.*
New York: Dover, p. 999, 1972.

© 1996-9

1999-05-25