Tietze Schenk Electronic Circuits -

Electronic Circuits: Handbook for Design and Application (often referred to simply as Tietze-Schenk

The significance of their work can be seen in several areas: tietze schenk electronic circuits

Most textbooks give you a final formula. Tietze Schenk gives you the approximation , the exact formula , and then the rule of thumb . For example, when discussing the common emitter amplifier gain ($A_v$), it provides: the exact formula