Finished program to find determinant of matrix: wont compile?

Hello, i have written this program, it is close to being finished... it should compile i think but im getting the following errors (lines might not match up)

Code:

ass.c:42: error: 'minordet' undeclared (first use in this function)
ass.c:42: error: (Each undeclared identifier is reported only once
ass.c:42: error: for each function it appears in.)
ass.c:42: error: too few arguments to function 'MinorDeterminant'
ass.c: At top level:
ass.c:55: error: conflicting types for 'MinorDeterminant'
ass.c:14: note: previous declaration of 'MinorDeterminant' was here

Here is the program:

Code:

#include <stdio.h>
#include <stdlib.h>
#include <math.h>

float MinorDeterminant(float minor[3][3], int i, int j);

int main(int argc, char* argv[])
{
    FILE         *input;
    int           i, j;  
    float         matrix[3][3], determinant;
    const char    inp_fn[]="matrix.dat";
	
    /* Open files */
    input = fopen(inp_fn, "r");
    /* Check the pointers to files are not NULL, also check matrix has correct number of elements... not done yet */
    if( (input != (FILE*) NULL) )
    {
      {	
	printf("| ");
		for (i = 0; i < 3; i++)
			for (j = 0; j < 3; j++) 
			{
				fscanf(input, "%f", &matrix[i][j]);
				printf("%.4f  ", matrix[i][j]);
				if (j == 2 && i < 2) 
				printf("| \n |");
			}			
	printf("|\n");		
	}		
    for(i=0, j=0; j<=2; j++)
	{
	determinant += (pow(-1, j)) * (matrix[i][j]) * MinorDeterminant(minordet);
	printf("Determinant = %f", determinant);
	}
	fclose(input);
	return(0);
	}
 else
   {
    printf("*** Could not open input file, or there are not 9 elements in the matrix ***\n");
	exit(EXIT_FAILURE);
   }
}  

float MinorDeterminant(float matrix[3][3])
{
float minordet;
int i, j;

if (i==0 && j==0)

minordet = (matrix[1][1] * matrix[2][2]) - (matrix[2][1] * matrix[1][2]);

else if (i==0 && j==1)

minordet = (matrix[1][0] * matrix[2][2]) - (matrix[2][0] * matrix[1][2]);

else if (i==0 && j==2)

minordet = (matrix[1][0] * matrix[2][1]) - (matrix[2][0] * matrix[1][1]);

return(minordet);
}

Please help me fix the errors, thank you!

Braces problem most likely. Any particular reason why you open 2 after the if(input != NULL) ?

Your indentation is horrible which is why you can't see what is going on

Your function prototype says

Code:

float MinorDeterminant(float minor[3][3], int i, int j);

But when you do your function definition: you wrote:

Code:

float MinorDeterminant(float matrix[3][3])

In

Code:

determinant += (pow(-1, j)) * (matrix[i][j]) * MinorDeterminant(minordet);

"minordet" is never declared, i think you meant "matrix" because you read your file into "matrix".