Specifications

11 Reliable Computations
11-14
extraordinary arithmetic range difficulties of polynomial coefficients, as
illustrated in the “Transfer Function” section. The transformation from state
space to zero-pole-gain is stable, although the handling of infinite zeros can
sometimes be tricky, and repeated roots can cause problems.
If possible, avoid repeated switching between different model representations.
As discussed in the previous sections, when transformations between models
are not numerically stable, roundoff errors are amplified.