Class quadratic_real (o2scl)

O2scl : Class List

class o2scl::quadratic_real

Solve a quadratic polynomial with real coefficients and real roots [abstract base].

Subclassed by o2scl::quadratic_real_coeff

Public Functions

~quadratic_real()
int solve_r(const double a2, const double b2, const double c2, double &x1, double &x2) = 0

Solves the polynomial \( a_2 x^2 + b_2 x + c_2 = 0 \) giving the two solutions \( x=x_1 \) and \( x=x_2 \) .

double disc_r(double a2, double b2, double c2)

Compute the quadratic discriminant, \( b^2-4ac \).

const char *type()

Return a string denoting the type (“quadratic_real”)