public Matrix<T, A> add(Matrix<T, A> right) throws MatrixException {
Matrix<T, A> temp = new Matrix<T, A>(arithmetics, rowSize, columnSize);
if (rowSize != right.rowSize || columnSize != right.columnSize)
throw new MatrixException("Cannot add matrices of different sizes");
setup(temp, rowSize, columnSize);
for (int i = 0; i < rowSize; ++i) {
for (int j = 0; j < columnSize; ++j)
temp.matrix[i][j] = arithmetics.add(matrix[i][j], right.matrix[i][j]);
}
return temp;
}
public Matrix<T, A> multiply(Matrix<T, A> right) throws MatrixException {
Matrix<T, A> temp = new Matrix<T, A>(arithmetics, rowSize, right.columnSize);
if (columnSize != right.rowSize)
throw new MatrixException("Cannot multiply matrices of incompatible sizes");
setup(temp, rowSize, right.columnSize);
for (int i = 0; i < rowSize; ++i) {
for (int j = 0; j < right.columnSize; ++j) {
T sum = arithmetics.zero();
for (int k = 0; k < columnSize; ++k) {
sum = arithmetics.add(sum, arithmetics.multiply(matrix[i][k], right.matrix[k][j]));
}
temp.matrix[i][j] = sum;
}
}
return temp;
}