vector.h File Reference

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Data Structures
struct	rc_vector_t
	Struct containing the state of a vector and a pointer to dynamically allocated memory to hold its contents. More...

Macros
#define	RC_VECTOR_INITIALIZER

Typedefs
typedef struct rc_vector_t	rc_vector_t
	Struct containing the state of a vector and a pointer to dynamically allocated memory to hold its contents. More...

Functions
rc_vector_t	rc_vector_empty (void)
	Returns an rc_vector_t with no allocated memory and the initialized flag set to 0. More...
int	rc_vector_alloc (rc_vector_t *v, int length)
	Allocates memory for vector v to have specified length. More...
int	rc_vector_free (rc_vector_t *v)
	Frees the memory allocated for vector v. More...
int	rc_vector_zeros (rc_vector_t *v, int length)
	Resizes vector v and fills with zeros. More...
int	rc_vector_ones (rc_vector_t *v, int length)
	Resizes vector v and fills with ones. More...
int	rc_vector_random (rc_vector_t *v, int length)
	Resizes vector v and fills with random numbers between -1.0 and 1.0. More...
int	rc_vector_fibonnaci (rc_vector_t *v, int length)
	Resizes vector v and fills with Fibonnaci sequence. More...
int	rc_vector_from_array (rc_vector_t *v, double *ptr, int length)
	Resizes vector v and populates with values from specified array ptr. More...
int	rc_vector_duplicate (rc_vector_t a, rc_vector_t *b)
	Duplicates the contents of vector a and into a new vector b. More...
int	rc_vector_print (rc_vector_t v)
	Prints to stdout the contents of vector v in one line. More...
int	rc_vector_print_sci (rc_vector_t v)
	Prints to stdout the contents of vector v in one line. More...
int	rc_vector_zero_out (rc_vector_t *v)
	Sets all values of an already-allocated vector to 0. More...
int	rc_vector_times_scalar (rc_vector_t *v, double s)
	Multiplies every entry in vector v by scalar s. More...
double	rc_vector_norm (rc_vector_t v, double p)
	Returns the vector norm defined by sum(abs(v)^p)^(1/p), where p is any positive real value. More...
int	rc_vector_max (rc_vector_t v)
	Returns the index of the maximum value in v. More...
int	rc_vector_min (rc_vector_t v)
	Returns the index of the minimum value in v. More...
double	rc_vector_std_dev (rc_vector_t v)
	Returns the standard deviation of the values in a vector. More...
double	rc_vector_mean (rc_vector_t v)
	Returns the mean (average) of all values in vector v or -1.0f on error. More...
int	rc_vector_projection (rc_vector_t v, rc_vector_t e, rc_vector_t *p)
	Populates vector p with the projection of vector v onto e. More...
double	rc_vector_dot_product (rc_vector_t v1, rc_vector_t v2)
	Calculates the dot product of two equal-length vectors. More...
int	rc_vector_cross_product (rc_vector_t v1, rc_vector_t v2, rc_vector_t *p)
	Computes the cross-product of two vectors, each of length 3. More...
int	rc_vector_sum (rc_vector_t v1, rc_vector_t v2, rc_vector_t *s)
	Populates vector s with the sum of vectors v1 and v2. More...
int	rc_vector_sum_inplace (rc_vector_t *v1, rc_vector_t v2)
	Adds vector v2 to v1 and leaves the result in v1. More...
int	rc_vector_subtract (rc_vector_t v1, rc_vector_t v2, rc_vector_t *s)
	Populates vector s with the difference v1 - v2. More...

Variables
double	zero_tolerance