org.ejml.data

Interface Matrix64F

All Superinterfaces:

Serializable

All Known Subinterfaces:

FixedMatrix64F

All Known Implementing Classes:

BlockMatrix64F, D1Matrix64F, DenseMatrix64F, FixedMatrix2_64F, FixedMatrix2x2_64F, FixedMatrix3_64F, FixedMatrix3x3_64F, FixedMatrix4_64F, FixedMatrix4x4_64F, FixedMatrix5_64F, FixedMatrix5x5_64F, FixedMatrix6_64F, FixedMatrix6x6_64F, ReshapeMatrix64F, RowD1Matrix64F

public interface Matrix64F
extends Serializable

Interface for all 64 bit floating point rectangular matrices.

Author:

Peter Abeles

Method Summary

Methods

Modifier and Type	Method and Description
<T extends Matrix64F> T	copy()
double	get(int row, int col) Returns the value of value of the specified matrix element.
int	getNumCols() Returns the number of columns in this matrix.
int	getNumElements() Returns the number of elements in this matrix, which is the number of rows times the number of columns.
int	getNumRows() Returns the number of rows in this matrix.
void	print()
void	set(int row, int col, double val) Sets the value of the specified matrix element.
double	unsafe_get(int row, int col) Same as get(int, int) but does not perform bounds check on input parameters.
void	unsafe_set(int row, int col, double val) Same as set(int, int, double) but does not perform bounds check on input parameters.

Method Detail

get

double get(int row,
         int col)

Returns the value of value of the specified matrix element.

Parameters:

row - Matrix element's row index..

col - Matrix element's column index.

Returns:

The specified element's value.

unsafe_get

double unsafe_get(int row,
                int col)

Same as get(int, int) but does not perform bounds check on input parameters. This results in about a 25% speed increase but potentially sacrifices stability and makes it more difficult to track down simple errors. It is not recommended that this function be used, except in highly optimized code where the bounds are implicitly being checked.

Parameters:

row - Matrix element's row index..

col - Matrix element's column index.

Returns:

The specified element's value.

set

void set(int row,
       int col,
       double val)

Sets the value of the specified matrix element.

Parameters:

row - Matrix element's row index..

col - Matrix element's column index.

val - The element's new value.

unsafe_set

void unsafe_set(int row,
              int col,
              double val)

Same as set(int, int, double) but does not perform bounds check on input parameters. This results in about a 25% speed increase but potentially sacrifices stability and makes it more difficult to track down simple errors. It is not recommended that this function be used, except in highly optimized code where the bounds are implicitly being checked.

Parameters:

row - Matrix element's row index..

col - Matrix element's column index.

val - The element's new value.

getNumRows

int getNumRows()

Returns the number of rows in this matrix.

Returns:

Number of rows.

getNumCols

int getNumCols()

Returns the number of columns in this matrix.

Returns:

Number of columns.

getNumElements

int getNumElements()

Returns the number of elements in this matrix, which is the number of rows times the number of columns.

Returns:

Number of elements in this matrix.

copy

<T extends Matrix64F> T copy()

print

void print()