public interface DMatrix extends Matrix
Modifier and Type | Method and Description |
---|---|
double |
get(int row,
int col)
Returns the value of value of the specified matrix element.
|
int |
getNumElements()
Returns the number of elements in this matrix, which is the number of rows
times the number of columns.
|
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. |
copy, createLike, getNumCols, getNumRows, getType, print, set
double get(int row, int col)
row
- Matrix element's row index..col
- Matrix element's column index.double unsafe_get(int row, int col)
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.row
- Matrix element's row index..col
- Matrix element's column index.void set(int row, int col, double val)
row
- Matrix element's row index..col
- Matrix element's column index.val
- The element's new value.void unsafe_set(int row, int col, double val)
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.row
- Matrix element's row index..col
- Matrix element's column index.val
- The element's new value.int getNumElements()