Contents
1
Solution of difference equations using z-transforms
1.1 Solution of first order linear constant coefficient difference equations
1.2 Use of the right shift theorem in solving difference equations
2 Second order difference equations
3 Inversion of z-transforms using residues
3.1 Pole of a function of a complex variable
3.2 Residue at a pole
3.3 Inverse z-transform formula
4 An application of difference equations – currents in a ladder network
1.1 Solution of first order linear constant coefficient difference equations
1.2 Use of the right shift theorem in solving difference equations
2 Second order difference equations
3 Inversion of z-transforms using residues
3.1 Pole of a function of a complex variable
3.2 Residue at a pole
3.3 Inverse z-transform formula
4 An application of difference equations – currents in a ladder network