Homepage » ALL COURSE » College of Electrical and Computer Engineering » Information Theory – 107 Academic Year | College of Electrical and Computer Engineering Prof. Po-Ning Chen » Chapter 4:Data Transmission and Channel Capacity, 4.5 Calculating channel capacity, 4.5.1 Symmetric, Weakly Symmetric, and Quasi-symmetric Channels, 4.5.2 Karuch-Kuhn-Tucker cond. for chan. capacity