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commit in order to appease git

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Tobias Grampp 2025-11-24 10:09:13 +01:00
commit f6a813a635
1 changed files with 48 additions and 15 deletions
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63
matrix.c
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@ -55,14 +55,10 @@ MatrixType getMatrixAt(const Matrix matrix, unsigned int rowIdx, unsigned int co
Matrix add(const Matrix matrix1, const Matrix matrix2)
{
Matrix MatrixErgebnis = createMatrix(matrix1.rows, matrix1.cols); //Creating Result Matrix
if(matrix1.cols != matrix2.cols || matrix1.rows != matrix2.rows){
printf("Matrix dimensions do not match\n"); //Error Message if dimensions of Input Matrixes are not identical
clearMatrix(&MatrixErgebnis);
return MatrixErgebnis;
}
else{
//If rows and cols of both Matrixes are the same the normal addition starts
if (matrix1.rows == matrix2.rows && matrix1.cols == matrix2.cols){
Matrix MatrixErgebnis = createMatrix(matrix1.rows, matrix1.cols);
for (unsigned int i = 0; i < matrix1.rows; i++){
for (unsigned int j = 0; j < matrix1.cols; j++){
//Adding Matrix Elements of same row and col index together and store in new Matrix
@ -70,19 +66,59 @@ Matrix add(const Matrix matrix1, const Matrix matrix2)
}
}
return MatrixErgebnis;
}
//if matrix1 is a Vektor it adds elements to first col of matrix2
else if (matrix1.cols == 1 && matrix1.rows == matrix2.rows){
Matrix MatrixErgebnis = createMatrix(matrix2.rows, matrix2.cols);
for (unsigned int i = 0; i < matrix2.rows; i++) {
for (unsigned int j = 0; j < matrix2.cols; j++) {
//Copy Matrix2 to ErgebnisMatrix
MatrixErgebnis.buffer[i * matrix2.cols + j] = getMatrixAt(matrix2, i, j);
//Adding Elements of first col of Matrix 1 (Vector) to all Elements of MatrixErgebnis
MatrixErgebnis.buffer[i * matrix2.cols + j] += matrix1.buffer[i];
}
}
return MatrixErgebnis;
}
//if matrix2 is a Vektor it adds elements to first col of matrix1
else if (matrix2.cols == 1 && matrix1.rows == matrix2.rows){
Matrix MatrixErgebnis = createMatrix(matrix1.rows, matrix1.cols);
for (unsigned int i = 0; i < matrix1.rows; i++) {
for (unsigned int j = 0; j < matrix1.cols; j++) {
//Copy Matrix1 to ErgebnisMatrix
MatrixErgebnis.buffer[i * matrix1.cols + j] = getMatrixAt(matrix1, i, j);
//Adding Elements of first col of Matrix 2 (Vector) to first col of MatrixErgebnis
MatrixErgebnis.buffer[i * matrix1.cols + j] += matrix2.buffer[i];
}
}
return MatrixErgebnis;
}
else{
printf("Matrix dimensions do not match\n"); //Error Message if dimensions of Input Matrixes are not identical
Matrix MatrixErgebnis = createMatrix(0, 0);
clearMatrix(&MatrixErgebnis);
return MatrixErgebnis;
}
}
return MatrixErgebnis;
}
Matrix multiply(const Matrix matrix1, const Matrix matrix2)
{
Matrix result;
result.rows = 0;
result.cols = 0;
result.buffer = NULL;
if (matrix1.cols != matrix2.rows) {
return result;
}
result.rows = matrix1.rows;
result.cols = matrix2.cols;
if (matrix1.rows == matrix2.cols) {
result.buffer = malloc(result.rows * result.cols * sizeof(MatrixType));
for(int i = 0; i < result.rows; i++) {
@ -91,11 +127,8 @@ Matrix multiply(const Matrix matrix1, const Matrix matrix2)
for(int k = 0; k < matrix1.cols; k++) {
value += matrix1.buffer[i * matrix1.cols + k] * matrix2.buffer[k * matrix2.cols + j];
}
result.buffer[i * matrix1.cols + j] = value;
result.buffer[i * result.cols + j] = value;
}
}
return result;
}
printf("Die angegebenen Matrizen haben keine passenden Dimensionen für die Multiplikation");
return result;
}