In my May 15, 2000 email message on the Subject: 2000 IBC "Unofficial"
Errata, Section 16220.127.116.11, Approximate Fundamental Period, I am not sure the
wording for Equation 16-39 came through correctly.
Equation 16-39 should read: "T sub a = C sub T*h sub n ^ 3/4."
I apologize for any inconvenience this might have caused you.
Frank E. McClure March 16, 2000