Mine

#ifndef MATRIXZ_H
#define MATRIXZ_H

#include <vector>

class matrixZ
{
public:
	std::vector<float> operator* (std::vector<float> Vect);

private:
	float theta;

};

#endif

#include "matrixZ.h"
#include <vector>
#include <math.h>

std::vector<float> matrixZ::operator*(std::vector<float> Vect)
{
	std::vector<float> temp(2);

	temp[0] = Vect[0] * cos(theta) - Vect[1] * sin(theta);
	temp[1] = Vect[0] * sin(theta) + Vect[1] * cos(theta);

	return temp;
}