[ create a new paste ] login | about

Link: http://codepad.org/zol3iRyi    [ raw code | output | fork ]

C, pasted on May 20: 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64

#define N 3
int main(int argc, char ** argv)
{
	int i,j,k;
	char buff[100];

	double dbl1[N][N];
	double dbl2[N][N];

	printf("input %dx%d matrix A\n", N, N);
	for(i = 0 ; i < N ; i++)
	{
		for(j = 0 ; j < N ; j++)
		{
			fgets(buff, sizeof(buff), stdin);
			dbl1[i][j] = atol(buff);
		}
	}
	printf("input %dx%d matrix B\n", N, N);
	for(i = 0 ; i < N ; i++)
	{
		for(j = 0 ; j < N ; j++)
		{
			fgets(buff, sizeof(buff), stdin);
			dbl2[i][j] = atol(buff);
		}
	}
	printf("matrix A = \n");
	for(i = 0 ; i < N ; i++)
	{
		for(j = 0 ; j < N ; j++)
		{
			printf("%lf,", dbl1[i][j]);
		}
		printf("\n");
	}
	printf("\n");
	printf("matrix B = \n");
	for(i = 0 ; i < N ; i++)
	{
		for(j = 0 ; j < N ; j++)
		{
			printf("%lf,", dbl2[i][j]);
		}
		printf("\n");
	}
	
	printf("\n");
	printf("matrix A*B = \n");
	for(i = 0 ; i < N ; i++)
	{
		for(j = 0 ; j < N ; j++)
		{
			double total = 0.0;
			for(k = 0 ; k < N ; k++)
			{
				total += dbl1[i][k] * dbl2[k][j];
			}
			printf("%lf,", total);
		}
		printf("\n");
	}
	return 0;	
}


Output: 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16

input 3x3 matrix A
input 3x3 matrix B
matrix A = 
0.000000,0.000000,0.000000,
0.000000,0.000000,0.000000,
0.000000,0.000000,0.000000,

matrix B = 
0.000000,0.000000,0.000000,
0.000000,0.000000,0.000000,
0.000000,0.000000,0.000000,

matrix A*B = 
0.000000,0.000000,0.000000,
0.000000,0.000000,0.000000,
0.000000,0.000000,0.000000,


Create a new paste based on this one


Comments: