Fixed printf() parameter issue.

modsim/ass2/q2.c

@@ -7,10 +7,9 @@ double func(double x) {
     return x * sin(x) - 1;
 }
 
-#define BISEC(exponent) (bisec(&func, 0, 2, pow(10, -1.0 * exponent), &steps))
-
 int main(int argc, char *argv[]) {
     unsigned int steps, i, begin, end;
+    double bisection;
 
     if( argc != 3 ) {
         printf("Usage: %s BEGIN END\n", argv[0]);
@@ -20,8 +19,10 @@ int main(int argc, char *argv[]) {
     begin = atoi(argv[1]);
     end = atoi(argv[2]);
 
-    for( i = begin; i <= end; i++ )
-        printf("zero point: %.30f for epsilon = 1e-%d (%d steps)\n", BISEC(i), i, steps);
+    for( i = begin; i <= end; i++ ) {
+        bisection = bisec(&func, 0, 2, pow(10, -1.0 * i), &steps);
+        printf("zero point: %.30f for epsilon = 1e-%d (%d steps)\n", bisection, i, steps);
+    }
 
     return 0;
 }