Grad.h
df67de56ffdbgrid_srcplane_conversion

Grad.h
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			// header guard
			#ifndef GRAD_H
			#define GRAD_H

			//include
			#include <iostream>
			#include <string.h>
			#include "structure.h"
			#include <math.h>

			/ for both gradient and second derivatives /
			struct point rotateCoordinateSystem(struct point P, double theta);

			/ gradient /
			struct point module_potentialDerivatives_totalGradient(const int Nlens, const struct point pImage, PotentialSet *lens );
			struct point grad_halo_sis(const struct point pImage, int iterator,PotentialSet lens);
			struct point grad_halo_piemd(const struct point pImage, int iterator,PotentialSet lens);

			/ PIEMD /
			complex piemd_1derivatives_ci05(double x, double y, double eps, double rc);

			/ Potential /
			void module_readParameters_calculatePotentialparameter(Potential *lens);

			// end header guard
			#endif