Addition und Multiplikation hinzugefügt
This commit is contained in:
parent
80481f037d
commit
6594829227
61
matrix.c
61
matrix.c
@ -31,21 +31,21 @@ void clearMatrix(Matrix *matrix)
|
|||||||
matrix->cols = 0;
|
matrix->cols = 0;
|
||||||
}
|
}
|
||||||
|
|
||||||
void setMatrixAt(MatrixType value, Matrix matrix, unsigned int rowIdx, unsigned int colIdx)
|
void setMatrixAt(MatrixType value, Matrix *matrix, unsigned int rowIdx, unsigned int colIdx)
|
||||||
{
|
{
|
||||||
if(matrix.buffer == NULL)
|
if(matrix->buffer == NULL)
|
||||||
{
|
{
|
||||||
printf("Fehler beim Setzen! Matrix nicht initialisiert");
|
printf("Fehler beim Setzen! Matrix nicht initialisiert");
|
||||||
return;
|
return;
|
||||||
}
|
}
|
||||||
|
|
||||||
if(rowIdx >= matrix.rows || colIdx >= matrix.cols)
|
if(rowIdx >= matrix->rows || colIdx >= matrix->cols)
|
||||||
{
|
{
|
||||||
printf("Ungueltige Indizes beim Setzen!\n");
|
printf("Ungueltige Indizes beim Setzen!\n");
|
||||||
return;
|
return;
|
||||||
}
|
}
|
||||||
|
|
||||||
matrix.buffer[rowIdx * matrix.cols + colIdx] = value;
|
matrix->buffer[rowIdx * matrix->cols + colIdx] = value;
|
||||||
}
|
}
|
||||||
|
|
||||||
MatrixType getMatrixAt(const Matrix matrix, unsigned int rowIdx, unsigned int colIdx)
|
MatrixType getMatrixAt(const Matrix matrix, unsigned int rowIdx, unsigned int colIdx)
|
||||||
@ -67,10 +67,61 @@ MatrixType getMatrixAt(const Matrix matrix, unsigned int rowIdx, unsigned int co
|
|||||||
|
|
||||||
Matrix add(const Matrix matrix1, const Matrix matrix2)
|
Matrix add(const Matrix matrix1, const Matrix matrix2)
|
||||||
{
|
{
|
||||||
|
if((matrix1.rows != matrix2.rows) || (matrix1.cols != matrix2.cols))
|
||||||
|
{
|
||||||
|
printf("Fehler bei Addition: Matrix Dimensionen passen nicht ueberein!\n");
|
||||||
|
Matrix empty = {0, 0, NULL};
|
||||||
|
return empty;
|
||||||
|
}
|
||||||
|
|
||||||
|
float matrix1Wert = 0;
|
||||||
|
float matrix2Wert = 0;
|
||||||
|
float summe = 0;
|
||||||
|
|
||||||
|
Matrix ergebnisMatrix = createMatrix(matrix1.rows, matrix1.cols);
|
||||||
|
|
||||||
|
for(int row = 0; row < ergebnisMatrix.rows; row++)
|
||||||
|
{
|
||||||
|
for(int col = 0; col < ergebnisMatrix.cols; col++)
|
||||||
|
{
|
||||||
|
matrix1Wert = getMatrixAt(matrix1, row, col);
|
||||||
|
matrix2Wert = getMatrixAt(matrix2, row, col);
|
||||||
|
summe = matrix1Wert + matrix2Wert;
|
||||||
|
|
||||||
|
setMatrixAt(summe, &ergebnisMatrix, row, col);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return ergebnisMatrix;
|
||||||
}
|
}
|
||||||
|
|
||||||
Matrix multiply(const Matrix matrix1, const Matrix matrix2)
|
Matrix multiply(const Matrix matrix1, const Matrix matrix2)
|
||||||
{
|
{
|
||||||
|
if(matrix1.cols != matrix2.rows)
|
||||||
|
{
|
||||||
|
printf("Fehler bei Multiplikation: Matrix Dimensionen passen nicht ueberein!\n");
|
||||||
|
Matrix empty = {0, 0, NULL};
|
||||||
|
return empty;
|
||||||
|
}
|
||||||
|
|
||||||
|
float erg = 0;
|
||||||
|
|
||||||
|
Matrix ergebnisMatrix = createMatrix(matrix1.rows, matrix2.cols);
|
||||||
|
|
||||||
|
for(int row = 0; row < ergebnisMatrix.rows; row++)
|
||||||
|
{
|
||||||
|
for(int col = 0; col < ergebnisMatrix.cols; col++)
|
||||||
|
{
|
||||||
|
erg = 0;
|
||||||
|
|
||||||
|
for(int k = 0; k < matrix1.cols; k++)
|
||||||
|
{
|
||||||
|
erg += getMatrixAt(matrix1, row, k) * getMatrixAt(matrix2, k, col);
|
||||||
|
}
|
||||||
|
|
||||||
|
setMatrixAt(erg, &ergebnisMatrix, row, col);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return ergebnisMatrix;
|
||||||
}
|
}
|
||||||
Loading…
x
Reference in New Issue
Block a user