89 lines
2.1 KiB
C++
89 lines
2.1 KiB
C++
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#include "Solver.h"
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#include <math.h>
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/* Generic Solver constructor */
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Solver::Solver(double a, double b, double c, double d, double e)
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{
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this->a = a;
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this->b = b;
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this->c = c;
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this->d = d;
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this->e = e;
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}
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/**************************************************************************
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* QuadraticSolver methods *
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*************************************************************************/
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QuadraticSolver::QuadraticSolver(double a, double b, double c)
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: Solver(a, b, c)
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{
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}
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/* solve a quadratic equation */
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Solver::Result QuadraticSolver::solve()
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{
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Result res;
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double discriminant = b * b - 4 * a * c;
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if (discriminant < 0.0)
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{
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res.numResults = 0;
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}
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else
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{
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double sqrt_discriminant = sqrt(discriminant);
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double two_a = 2.0 * a;
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if (sqrt_discriminant == 0.0)
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{
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res.numResults = 1;
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res.results[0] = (-b) / two_a;
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}
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else
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{
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res.numResults = 2;
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res.results[0] = (-b - sqrt_discriminant) / two_a;
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res.results[1] = (-b + sqrt_discriminant) / two_a;
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}
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}
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return res;
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}
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/**************************************************************************
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* CubicSolver methods *
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*************************************************************************/
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CubicSolver::CubicSolver(double a, double b, double c, double d)
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: Solver(a, b, c, d)
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{
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}
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Solver::Result CubicSolver::solve()
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{
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Result res;
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/* TODO: fill in */
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return res;
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}
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/**************************************************************************
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* QuarticSolver methods *
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*************************************************************************/
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QuarticSolver::QuarticSolver(double a, double b, double c, double d, double e)
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: Solver(a, b, c, d, e)
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{
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}
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Solver::Result QuarticSolver::solve()
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{
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Result res;
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/* TODO: fill in */
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return res;
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}
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Solver::Result::Result()
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{
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numResults = 0;
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}
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