Example #1
0
int main () {

    int rows = 2;
    int cols = 3;

    int matrix1[rows][cols] = {{0,1,2}, {9,8,7}};
    int matrix2[rows][cols] = {{6,5,4},{3,4,5}};
    int resultMatrix[rows][cols];

    printf("Matrix 1:\n");
    printMatrix(rows, cols, matrix1);
    printf("\nMatrix 2:\n");
    printMatrix(rows, cols, matrix2);

    printf("\nMatrix 1 + Matrix 2:\n");
    matrixAdd(rows, cols, matrix1, matrix2, resultMatrix);
    printMatrix(rows, cols, resultMatrix);

    printf("\nMatrix 1 - Matrix 2:\n");
    matrixSubtract(rows, cols, matrix1, matrix2, resultMatrix);
    printMatrix(rows, cols, resultMatrix);

    return 0;

}
/* Main method to test math */
int main() {
    // Test matrix math
    struct Matrix a;
    //double valuesa[9] = { 5.0, -2.0, 1.0, 0.0, 3.0, -1.0, 2.0, 0.0, 7.0 };
    double valuesa[16] = { 1.0, 3.0, -2.0, 1.0, 5.0, 1.0, 0.0, -1.0, 0.0, 1.0, 0.0, -2.0, 2.0, -1.0, 0.0, 3.0 };
    newMatrix(&a, valuesa, 4, 4);
    struct Matrix b;
    double valuesb[9] = { 1.0, 2.0, 3.0, 0.0, -4.0, 1.0, 0.0, 3.0, -1.0 };
    newMatrix(&b, valuesb, 3, 3);
    struct Matrix cofa;
    matrixCofactor(&cofa, a);
    printf("A Cofactor=\n");
    matrixToString(cofa);
    struct Matrix inva;
    matrixInverse(&inva, a);
    printf("A Inverse=\n");
    matrixToString(inva);
    printf("A=\n");
    matrixToString(a);
    printf("B=\n");
    matrixToString(b);
    printf("A is %sa square matrix.\n", matrixIsSquare(a) ? "" : "not ");
    printf("B is %sa square matrix.\n", matrixIsSquare(b) ? "" : "not ");
    printf("The determinant of A is %f.\n", matrixDeterminant(a));
    printf("A is %sunique.\n", matrixIsUnique(a) ? "" : "not ");
    printf("The determinant of B is %f.\n", matrixDeterminant(b));
    printf("B is %sunique.\n", matrixIsUnique(b) ? "" : "not ");
    struct Matrix aplusb;
    matrixAdd(&aplusb, a, b);
    printf("A+B=\n");
    matrixToString(aplusb);
    struct Matrix asubb;
    matrixSubtract(&asubb, a, b);
    printf("A-B=\n");
    matrixToString(asubb);
    struct Matrix ascale;
    matrixScale(&ascale, a, 5);
    printf("5A=\n");
    matrixToString(ascale);
    struct Matrix bscale;
    matrixScale(&bscale, b, 5);
    printf("5B=\n");
    matrixToString(bscale);
    printf("A and B are %sthe same size.\n", matrixIsSameSize(a, b) ? "" : "not ");

    printf("A=\n");
    matrixToString(a);
    printf("B=\n");
    matrixToString(b);

    // Test 3D vector math
}