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Denominator after simplification : denom

denom (or getDenom) takes as argument a rational fraction and returns the denominator of an irreducible representant of this fraction (see also 1.8.4).
Input :
denom((x^2-1)/(x-1))
Output :
1
Input :
denom((x^2+2*x+1)/(x^2-1))
Output :
x-1



giac documentation written by Renée De Graeve and Bernard Parisse