A. TRANSLATION BETWEEN MATLABµ-TOOLS AND Xµ393
Description µ-Tools Function Xmath/Xµequivalent
form system pck system
decompose system unpck abcd
form system nd2sys transfer function data objects
form system zp2sys transfer function data objects
decompose system sys2pss dynamic system data objects
form system pss2sys dynamic system data objects
random system sysrand randsys
generate filters mfilter butterworth,chebyshev
fit transfer functions drawmag fitsys,tfid
The µ-Tools drawmagfunctio n providesan interactive graphical interface. There is
currently no equivalentin Xµ. The equivalentunderlying data fitting algorithm can be
found in the Xµfunction fitsys.
varyi ng/pdm Functions
The equivalent functions for construction and manipulation of pdm data objects are
shown below.
Description µ-Tools Function Xmath/Xµequivalent
form varyi ng vpck pdm
break up varyi ng vunpck makematrix
get ivs. getiv domain
join varyi ng tackon concatseg,insertseg,mergeseg
sort by iv. sortiv mergeseg
select by iv. value xtract extractseg,indexlist,find
select by index xtracti indexing by pdm(i)
scale iv. scliv domain,pdm
compare ivs. indvcmp check
random varyi ng varyrand randpdm
As an aside, note that the sort function in Xmath sorts each columnof each matrix in a
pdm, rather than sorting the domain.