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30 lines
766 B
C++
30 lines
766 B
C++
#include <iostream>
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typedef enum {
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Negative = -1,
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Unconstrained,
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Positive
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} SlopeConstraint;
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class RootFinder {
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public:
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void init();
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void init( double tolerance, SlopeConstraint constraint);
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RootFinder();
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RootFinder (double tolerance, SlopeConstraint constraint);
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double find_roots( double x, double f_error );
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friend std::ostream& operator<<(std::ostream& os, const RootFinder& rf);
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private:
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double f_upper;
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double x_upper;
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bool upper_set;
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double f_lower;
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double x_lower;
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bool lower_set;
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double prev_f_error;
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double f_error_tol;
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int iterations;
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SlopeConstraint slope_constraint;
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SlopeConstraint f_slope;
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};
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