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Scilab Help >> Polynomials > simp


rational simplification

Calling Sequence




real polynomials or real matrix polynomials


rational matrix (i.e matrix with entries n/d ,n and d real polynomials)


[n1,d1]=simp(n,d) calculates two polynomials n1 and d1 such that n1/d1 = n/d.

If N and D are polynomial matrices the calculation is performed element-wise.

H1=simp(H) is also valid (each entry of H is simplified in H1).


-no threshold is given i.e. simp cannot forces a simplification.

-For linear dynamic systems which include integrator(s) simplification changes the static gain. (H(0) for continuous systems or H(1) for discrete systems)

-for complex data, simp returns its input(s).

-rational simplification is called after nearly each operations on rationals. It is possible to toggle simplification on or off using simp_mode function.




See Also

  • roots — roots of polynomials
  • trfmod — poles and zeros display
  • poly — polynomial definition
  • clean — cleans matrices (round to zero small entries)
  • simp_mode — toggle rational simplification
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Last updated:
Thu Oct 02 13:46:49 CEST 2014