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4.13.4 number related functions

cleardenom
cancellation of denominators of numbers in polyomial and divide it by its content (see cleardenom)
impart
imaginary part of a complex number, 0 otherwise (see impart, repart)
numerator, denominator
the numerator/denominator of a rational number (see numerator, denominator)
leadcoef
coefficient of the leading term (see leadcoef)
par
n-th parameter of the basering (see par)
pardeg
degree of a number in ring parameters (see pardeg)
parstr
string form of ring parameters (see parstr)
repart
real part of a complex number (see impart, repart)