File: rat.cat

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rat(G)                         Scilab Function                         rat(G)
NAME
  rat - Floating point rational approximation

CALLING SEQUENCE
  [N,D]=rat(x [,tol])
  y=rat(x [,tol])

PARAMETERS

  x         : real  vector or matrix

  n         : integer vector or matrix

  d         : integer vector or matrix

  y         : real vector or matrix

DESCRIPTION
  [N,D] = rat(x,tol) returns two integer matrices so that N./D is close tox
  in the sense that abs(N./D - X) <= tol*abs(x). The rational approximations
  are generated by truncating continued fraction expansions. tol = 1.e-
  6*norm(X,1) is the default.  y = rat(x,tol) return the quotient N./D
SEE ALSO
  int, round

EXAMPLES
  [n,d]=rat(%pi)
  [n,d]=rat(%pi,1.d-12)
  n/d-%pi