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polclr
Clear PolynomialSYNOPSIS:
int na;
double a[na];
polclr( a, na );
DESCRIPTION:
Set all coefficients of polynomial a to zero, up to a[na].
The polynomial is represented by an array containing its coefficients, together with a separately declared integer equal to the degree of the polynomial.
The coefficients appear in ascending order; that is,
2 na
a(x) = a[0] + a[1] * x + a[2] * x + ... + a[na] * x .