matrix.c File Reference

This is a collection of functions for generating and implementing discrete SISO filters for arbitrary transfer functions. More...

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <rc/math/other.h>
#include <rc/math/matrix.h>
#include "algebra_common.h"

Include dependency graph for matrix.c:

Functions
rc_matrix_t	rc_matrix_empty (void)
	Returns an rc_matrix_t with no allocated memory and the initialized flag set to 0. More...
int	rc_matrix_alloc (rc_matrix_t *A, int rows, int cols)
	Allocates memory for matrix A to have size rows&cols. More...
int	rc_matrix_free (rc_matrix_t *A)
	Frees the memory allocated for a matrix A. More...
int	rc_matrix_zeros (rc_matrix_t *A, int rows, int cols)
	Resizes matrix A and allocates memory for a matrix with specified rows & columns. The new memory is pre-filled with zeros using calloc. Any existing memory allocated for A is freed if necessary to avoid memory leaks. More...
int	rc_matrix_identity (rc_matrix_t *A, int dim)
	Resizes A to be a square identity matrix with dimensions dim-by-dim. More...
int	rc_matrix_random (rc_matrix_t *A, int rows, int cols)
	Generates a matrix populated with random numbers between -1 and 1. More...
int	rc_matrix_diagonal (rc_matrix_t *A, rc_vector_t v)
	Generates a diagonal matrix with the elements of specified vector v. More...
int	rc_matrix_duplicate (rc_matrix_t A, rc_matrix_t *B)
	Duplicates the contents of matrix A and into matrix B. More...
int	rc_matrix_print (rc_matrix_t A)
	Prints the contents of matrix A to stdout in decimal notation with 4 decimal places. More...
int	rc_matrix_print_sci (rc_matrix_t A)
	Prints the contents of matrix A to stdout in scientific notation. More...
int	rc_matrix_zero_out (rc_matrix_t *A)
	Sets all values of an already-allocated matrix to 0. More...
int	rc_matrix_times_scalar (rc_matrix_t *A, double s)
	Multiplies every entry in A by scalar value s. More...
int	rc_matrix_multiply (rc_matrix_t A, rc_matrix_t B, rc_matrix_t *C)
	Multiplies A*B=C. More...
int	rc_matrix_left_multiply_inplace (rc_matrix_t A, rc_matrix_t *B)
	Multiplies A*B and puts the result back in the place of B. More...
int	rc_matrix_right_multiply_inplace (rc_matrix_t *A, rc_matrix_t B)
	Multiplies A*B and puts the result back in the place of A. More...
int	rc_matrix_add (rc_matrix_t A, rc_matrix_t B, rc_matrix_t *C)
	Adds matrices A+B and places the result in C. More...
int	rc_matrix_add_inplace (rc_matrix_t *A, rc_matrix_t B)
	Adds matrix A to B and places the result back in A. More...
int	rc_matrix_subtract_inplace (rc_matrix_t *A, rc_matrix_t B)
	Subtracts matrix B from A and leaves the result in A. More...
int	rc_matrix_transpose (rc_matrix_t A, rc_matrix_t *T)
	Transposes the contents of A and places the result in T. More...
int	rc_matrix_transpose_inplace (rc_matrix_t *A)
	Transposes matrix A in place. More...
int	rc_matrix_times_col_vec (rc_matrix_t A, rc_vector_t v, rc_vector_t *c)
	Multiplies matrix A times column vector v and places the result in column vector c. More...
int	rc_matrix_row_vec_times_matrix (rc_vector_t v, rc_matrix_t A, rc_vector_t *c)
	Multiplies row vector v times matrix A and places the result in row vector c. More...
int	rc_matrix_outer_product (rc_vector_t v1, rc_vector_t v2, rc_matrix_t *A)
	Computes v1 times v2 where v1 is a column vector and v2 is a row vector. More...
double	rc_matrix_determinant (rc_matrix_t A)
	Calculates the determinant of square matrix A. More...
int	rc_matrix_symmetrize (rc_matrix_t *P)
	Symmetrizes a square matrix. More...

Detailed Description

This is a collection of functions for generating and implementing discrete SISO filters for arbitrary transfer functions.

Author

James Strawson

Date

2016