+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+
+int counter1;
+float counter2;
+int steps;
+int hits;
+float x;
+float x2;
+float y;
+float y2;
+float pie;
+char stepschar[100];
+
+int main()
+{
+
+ printf("\n");
+ printf("\n");
+ printf("Berechne Pie...\n");
+ printf("\n");
+ printf("Genauigkeit - [steps] ? : ");
+
+ fgets(stepschar, sizeof(stepschar), stdin);
+ sscanf(stepschar, "%d", &steps);
+
+ counter2 = 0;
+ hits = 0;
+
+ for (counter1 = 1; counter1 <= steps; ++counter1)
+ {
+ x = rand( );
+ y = rand( );
+
+ x2 = x / RAND_MAX;
+ y2 = y / RAND_MAX;
+
+ printf("%7d. Vektor: ( %f , %f )\n", counter1, x2, y2);
+
+ if( ( x2 * x2 + y2 * y2) <= 1 )
+ ++hits;
+
+ counter2 = counter2 + x2 + y2;
+
+ }
+
+ pie = (4.0 * hits) / steps;
+
+ printf("\n");
+ printf("\tPie :\t %1.8f\n", pie);
+ printf("\tProbe:\t %1.8f (nah an 0.5 ?...)\n\n", counter2 / ( 2.0 * steps ));
+
+return (0);
+}