float2rational or exact takes as argument a
floating point number d and returns
a rational number q close to
d such that abs(d-q)<epsilon.
epsilon is defined in the cas configuration
(Cfg menu) or with the cas_setup command.
Input:
Output when epsilon=1e-10:
Input:
Output:
Input:
Output:
If two representations are mixed, for example:
the rational is converted to a float, output:
Input:
Output: