solvepoly

int  solvepoly(float coef[], float &roots[], int maxiter=0)

coef

An array of coefficients of the polynomial.

You must order the coefficients such that coef[i] should be x^i. This is reverse of the order you would write the polynomial out normally.

&roots

The function overwrites this array with the real roots of the polynomial, in ascending order.

Returns

The number of real roots.