Today's the day. Renamed platform to framework.

globalfunctions/math/MatrixOperations.h

@@ -0,0 +1,46 @@
+#ifndef MATRIXOPERATIONS_H_
+#define MATRIXOPERATIONS_H_
+
+#include <cmath>
+#include <stdint.h>
+
+template<typename T>
+class MatrixOperations {
+public:
+	virtual ~MatrixOperations() {
+	}
+
+	//do not use with result == matrix1 or matrix2 //TODO?
+	static void multiply(const T *matrix1, const T *matrix2, T *result,
+			uint8_t rows1, uint8_t columns1, uint8_t columns2) {
+		for (uint8_t resultColumn = 0; resultColumn < columns2;
+				resultColumn++) {
+			for (uint8_t resultRow = 0; resultRow < rows1; resultRow++) {
+				result[resultColumn + columns2 * resultRow] = 0;
+				for (uint8_t i = 0; i < columns1; i++) {
+					result[resultColumn + columns2 * resultRow] += matrix1[i
+							+ resultRow * columns1]
+							* matrix2[resultColumn + i * columns2];
+				}
+			}
+		}
+	}
+
+	static void transpose(const T *matrix, T *transposed, uint8_t size) {
+		uint8_t row, column;
+		transposed[0] = matrix[0];
+		for (column = 1; column < size; column++) {
+			transposed[column + size * column] = matrix[column + size * column];
+			for (row = 0; row < column; row++) {
+				T temp = matrix[column + size * row];
+				transposed[column + size * row] = matrix[row + size * column];
+				transposed[row + size * column] = temp;
+			}
+		}
+	}
+
+private:
+	MatrixOperations();
+};
+
+#endif /* MATRIXOPERATIONS_H_ */