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A polynomial of one variable is represented either by a symbolic expression or by the list of it's coefficients by decreasing powers order (dense representation). In the latter case, to avoid confusion with other kinds of list Note that polynomials represented as lists of coefficients are always written in decreassing powers order even if increasing power is checked in cas configuration.

A polynomial of several variables is represented


giac documentation written by Renée De Graeve and Bernard Parisse