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2*2 matrix determinant calculator

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superdimensional 2021-04-19 02:06:46 -04:00
parent 6629ca8f78
commit 6993ca7375
2 changed files with 33 additions and 5 deletions
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8
main.c
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@ -13,7 +13,7 @@ int main()
printf("\n\n 1. Hypotenuse calculator");
printf("\n 2. Quadratic formula calculator");
printf("\n 3. Area of a circle");
printf("\n 4. * Matrix determinant *");
printf("\n 4. Matrix determinant");
printf("\n 5. Matrix addition");
printf("\n 6. * Matrix multiplication *");
printf("\n 7. Scalar matrix multiplication");
@ -83,8 +83,10 @@ int main()
case 4:
system("clear");
printf("\n ~~ Matrix determinant ~~\n\n");
printf("\n ~~ 2*2 Matrix determinant ~~\n\n");
int det;
det = determinant();
printf("\nThe determinant is %d!\n",det);
break;
case 5:

30
matrices.h
View file

@ -59,10 +59,9 @@ int matrixAddition(int numRows, int numColumns)
int scalarMultiplication(int numRows, int numColumns, int scalar)
{
int matrix[numRows][numColumns];
printf("\nEnter elements in matrix of size %d*%d \n", numRows, numColumns);
printf("\nEnter elements in matrix of size %d*%d! \n", numRows, numColumns);
for (int i = 0; i < numRows; i++)
{
@ -85,6 +84,33 @@ int scalarMultiplication(int numRows, int numColumns, int scalar)
return 0;
}
int determinant()
{
int det;
int matrix[2][2];
printf("\nEnter elements in matrix: \n");
for (int i = 0; i < 2; i++)
{
for (int j = 0; j < 2; j++)
{
scanf("%d", &matrix[i][j]);
}
};
printf("\nElements in matrix are: \n");
for (int i = 0; i < 2; i++)
{
for (int j = 0; j < 2; j++)
{
printf(" %d ", matrix[i][j]);
}
printf("\n");
}
det = (matrix[0][0] * matrix[1][1]) - (matrix[0][1] * matrix[1][0]);
return det;
}
// int buildMatrix(int numRows, int numColumns)
// {