Inital commitHEADmaster

1 files changed, 30 insertions, 0 deletions

diff --git a/matrixv.c b/matrixv.c
new file mode 100644
index 0000000..0b1ea3a
--- /dev/null
+++ b/matrixv.c
@@ -0,0 +1,30 @@
+/*  File: matrixv.c
+    Calculate matrix equation b = Ax */
+    
+#include <stdio.h>
+
+#define M 3
+#define N 3
+
+int main()
+{
+    double a[M][N] = {{ 3,5,6},
+                      { 4,2,1},
+                      { 0,7,1}};
+    double v[N] = {2,1,-2};
+    double b[M];
+    
+    int i,j;
+    
+    for(i = 0;i<N;i++)
+    {
+        b[i] = 0;
+        for(j=0;j<N;j++)
+        {
+            b[i] += a[i][j] * v[j];
+        }
+    }
+    printf("b=%g,%g,%g\n",b[0],b[1],b[2]);
+    return 0;
+    
+}