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#include "macros.h"
#include "types.h"
#ifndef LIZFCM_H
#define LIZFCM_H
extern float smaceps();
extern double dmaceps();
extern double central_derivative_at(double (*f)(double), double a, double h);
extern double forward_derivative_at(double (*f)(double), double a, double h);
extern double backward_derivative_at(double (*f)(double), double a, double h);
extern double sum_v(Array_double *v);
extern Array_double *add_v(Array_double *v1, Array_double *v2);
extern Array_double *minus_v(Array_double *v1, Array_double *v2);
extern double dot_v(Array_double *v1, Array_double *v2);
extern double l2_norm(Array_double *v);
extern double l1_norm(Array_double *v);
extern double linf_norm(Array_double *v);
extern double l2_distance(Array_double *v1, Array_double *v2);
extern double l1_distance(Array_double *v1, Array_double *v2);
extern double linf_distance(Array_double *v1, Array_double *v2);
extern void format_vector_into(Array_double *v, char *s);
extern Line *least_squares_lin_reg(Array_double *x, Array_double *y);
#endif // LIZFCM_H
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