**'edu.rit.numeric.Quadratic'**Java class

## Class Quadratic

- java.lang.Object
- edu.rit.numeric.Quadratic

public class Quadraticextends Object

Class Quadratic solves for the real roots of a quadratic equation with real coefficients. The quadratic equation is of the form*ax*^{2}+*bx*+*c*= 0To solve a quadratic equation, construct an instance of class Quadratic; call the Quadratic object's

`solve()`method, passing in the coefficients*a*,*b*, and*c*; and obtain the roots from the Quadratic object's fields. The number of (real) roots, either 0 or 2, is stored in field`nRoots`. If there are no roots, fields`x1`and`x2`are set to NaN. If there are two roots, they are stored in fields`x1`and`x2`in descending order.The same Quadratic object may be used to solve several quadratic equations. Each time the

`solve()`method is called, the solution is stored in the Quadratic object's fields.The formulas for the roots of a quadratic equation come from:

E. Weisstein. "Quadratic equation." From

*MathWorld*--A Wolfram Web Resource. http://mathworld.wolfram.com/QuadraticEquation.html

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