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/*
* utils.h
*
* Utility stuff
*
* (c) 2007 Thomas White <taw27@cam.ac.uk>
*
* dtr - Diffraction Tomography Reconstruction
*
*/
#ifndef UTILS_H
#define UTILS_H
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <gsl/gsl_matrix.h>
#include <math.h>
extern unsigned int biggest(signed int a, signed int b);
extern unsigned int smallest(signed int a, signed int b);
extern double distance(double x1, double y1, double x2, double y2);
extern double modulus(double x, double y, double z);
extern double angle_between(double x1, double y1, double z1, double x2, double y2, double z2);
extern double angle_between_d(double x1, double y1, double z1, double x2, double y2, double z2);
extern double lambda(double voltage);
extern double distance3d(double x1, double y1, double z1, double x2, double y2, double z2);
extern size_t skipspace(const char *s);
extern void chomp(char *s);
#define rad2deg(a) ((a)*180/M_PI)
#define deg2rad(a) ((a)*M_PI/180)
#endif /* UTILS_H */
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