萌新求助，这是哪里错了吗？还是我电脑有问题
程序代码：#include <stdio.h>
#include <math.h>
main ()
{
double x,s;
printf("Please input value of x: ");
scanf ("%1f",&x);
s=cos(x);
printf("cos(%1f)=%1f\n",x,s);
}这是运行结果：
Please input value of x: 0
cos(-92559592117431994000000000000000000000000000000000000000000000.000000)=0.986254
Press any key to continue
