Scilab 5.5.2
Please note that the recommended version of Scilab is 2025.0.0. This page might be outdated.
See the recommended documentation of this function
rat
Floating point rational approximation
Calling Sequence
[N,D]=rat(X [,tol]) Y=rat(X [,tol])
Arguments
- X
real vector or matrix
- tol
real positive scalar, the tolerance (see below). Default value is 1d-6.
- 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*norm(X,1)*abs(X)
.
y=rat(x,tol)
return the quotient
N./D
The rational approximations are generated by truncating continued fraction expansions.
Examples
[n,d]=rat([3.5, 1.333333,-0.8]) [n,d]=rat(%pi) [n,d]=rat(%pi,1.d-12) n/d-%pi
Report an issue | ||
<< primes | Discrete mathematics | Elementary matrices >> |