Inital commitHEADmaster

1 files changed, 80 insertions, 0 deletions

diff --git a/matmult.c b/matmult.c
new file mode 100644
index 0000000..d1b2f2c
--- /dev/null
+++ b/matmult.c
@@ -0,0 +1,80 @@
+/*  File: matmult.c
+    Multiplication of two matricies*/
+#include <stdio.h>
+
+#define M 10
+#define N 20
+#define P 30
+
+int main()
+{
+    double a[M][N];
+    double b[N][P];
+    double c[M][P];
+    int i;
+    int j;
+    int k;
+
+    int pop1,pop2;
+    for(pop1=0;pop1<M;pop1++)
+    {
+        for(pop2=0;pop2<N;pop2++)
+        {
+            a[pop1][pop2] = pop1+pop2;
+        }   
+    }
+    
+    for(pop1=0;pop1<M;pop1++)
+    {
+        for(pop2=0;pop2<P;pop2++)
+        {
+            b[pop1][pop2] = pop1*pop2;
+        }
+    }
+
+    for(i=0;i<M;i++)
+    {
+        for(j=0;j<P;j++)
+        {
+            c[i][j] = 0;
+            for(k=0;k<N;k++)
+            {
+                c[i][j] += a[i][k]*b[k][j];
+            }
+        }
+    }
+    
+    printf("Matrix a is\n");
+    int l,m;
+    
+    for(l = 0;l<M;l++)
+    {
+        for(m = 0; m<N;m++)
+        {
+            printf("%3i ",(int)a[l][m]);
+        }
+        printf("\n");
+    }
+    
+    printf("\nMatrix b is\n");
+    for(l = 0;l<M;l++)
+    {
+        for(m = 0; m<N;m++)
+        {
+            printf("%3i ",(int)b[l][m]);
+        }
+        printf("\n");
+    }
+    
+    printf("\nMatrix c is\n");
+    for(l = 0;l<M;l++)
+    {
+        for(m = 0; m<N;m++)
+        {
+            printf("%5i ",(int)c[l][m]);
+        }
+        printf("\n");
+    }
+    
+    return 0;
+}