operation.h
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	#include <vector>
	#include <cmath>
	#include <mpi.h>
	#include <chrono>

	using namespace std;

	class operation{
	private:
	static void multiply(double matrix,double vec,double *result,int cols,int start,int end);
	static void matrVecMultiply(int cols,int rank,double matrix,double vec,int sc,int displ,double *allValues);
	public:
	static double dotProduct(vector<double> vec1,vector<double> vec2);
	static vector<double> vecAdd(vector<double> a,vector<double> b);
	static vector<double> vecSubtract(vector<double> a,vector<double> b);
	static double vector_norm(vector<double> v);

	//static matrix randomSymMatrix(int rows,int cols,int maxValue);
	static vector<double> randomVector(int len,int maxValue);

	static void displacement(int size,int scounts,int displs);
	static void sizeCounts(int n,int size,int *scounts);
	static vector<double> matrMultiply(double A,vector<double> B,int sc,int *disp);


	};