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Common denominator : comDenom

comDenom takes as argument a sum of rational fractions.
comDenom rewrite the sum as a unique rational fraction. The denominator of this rational fraction is the common denominator of the rational fractions given as argument.
Input :
comDenom(x-1/(x-1)-1/(x^2-1))
Output :
(x^3+-2*x-2)/(x^2-1)



giac documentation written by Renée De Graeve and Bernard Parisse