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e4c7ec1a59 |
@@ -31,5 +31,40 @@ Matrix add(const Matrix matrix1, const Matrix matrix2)
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Matrix multiply(const Matrix matrix1, const Matrix matrix2)
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Matrix multiply(const Matrix matrix1, const Matrix matrix2)
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{
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{
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// Überprüfen, ob die Matrizen gültig sind und ob ihre Dimensionen eine Multiplikation erlauben
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if (matrix1.buffer == NULL || matrix2.buffer == NULL || matrix1.cols != matrix2.rows)
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{
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return (Matrix){0};
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}
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// Ergebnismatrix erstellen
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Matrix result = createMatrix(matrix1.rows, matrix2.cols);
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// Überprüfen, ob die Speicherreservierung erfolgreich war
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if (result.buffer == NULL)
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{
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return (Matrix){0};
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}
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// Jede Zeile der ersten Matrix durchlaufen
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for (unsigned int i = 0; i < matrix1.rows; i++)
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{
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// Jede Spalte der zweiten Matrix durchlaufen
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for (unsigned int j = 0; j < matrix2.cols; j++)
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{
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MatrixType sum = 0;
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// Summe der Produkte berechnen
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for (unsigned int k = 0; k < matrix1.cols; k++)
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{
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sum += matrix1.buffer[i * matrix1.cols + k] *
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matrix2.buffer[k * matrix2.cols + j];
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}
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// Berechneten Wert in der Ergebnismatrix speichern
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result.buffer[i * result.cols + j] = sum;
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}
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}
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return result;
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}
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}
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