Sindbad~EG File Manager

/* a SERIES term contains in its arguments the coefficients
a[0],...,a[n-1] of a power series; followed by the
general term (written using var0 for the index variable)
*/

#define ORDER(t)  (ARITY(t)-2)  /* highest power of t explicitly written */
#define PSERIES term
#define GENERALTERM(t)  ARG(ARITY(t)-1,t)


PSERIES expandSeries( PSERIES a, unsigned short n);
PSERIES addSeries( PSERIES a, PSERIES b);
PSERIES multiplySeries( PSERIES a, PSERIES b);
PSERIES negateSeries( PSERIES a);
PSERIES subSeries( PSERIES a, PSERIES b);