Indirect calculation of network-function sensitivities with variations of some network parameters

In the letter an indirect method for calculation of the sensitivity (first order or higher order) of an arbitrary network function to variations of the parameter of some network elements is presented. The variable parameter can be the admittance of a 1-port, the transconductance of a voltage-controlled current source or the amplification of an ideal voltage or current amplifier. The procedure is suitable for computer calculations.