com.numericalmethod.suanshu.matrix.generic
Interface MatrixAccessor<F extends Field<F>>

Type Parameters:

F - the number Field

All Known Subinterfaces:

Matrix<T,F>

All Known Implementing Classes:

ComplexMatrix, GenericMatrix, RealMatrix

public interface MatrixAccessor<F extends Field<F>>

This interface defines methods for accessing elements in a matrix.

Indices count from 1, e.g., get(1,1), which is what mathematicians (not programmers) are accustomed to.

The only way to change a matrix is by set(int, int, com.numericalmethod.suanshu.mathstructure.Field). Other operations that "change" the matrix actually creates an independent copy.

See Also:

Field

Method Summary

F	get(int row, int col) Get the matrix element at [row, col].
void	set(int row, int col, F value) Set the matrix element at [row, col] to value.

Method Detail

set

void set(int row,
         int col,
         F value)
         throws MatrixAccessException

Set the matrix element at [row, col] to value.

This is the only function that may change the entries of a matrix.

Parameters:

row - the row index

col - the column index

value - the value to set A[row, col] to

Throws:

MatrixAccessException - if row or col is out of range

get

F get(int row,
      int col)
                       throws MatrixAccessException

Get the matrix element at [row, col].

Parameters:

row - the row index

col - the column index

Returns:

A[row, col]

Throws:

MatrixAccessException - if row or col is out of range