绘制正弦曲线

如何实现用“*”显示0~360度的sin(x)曲线

#include <stdio.h>
#include <math.h>

#define PERIODE 64
#define HALF    32
#define QUARTER 16
#define ENLARGE 10
#define YMAX     1
#define YMIN    -1

int
main(void)
{
    double y,m;
    int x;

    for(y=YMAX; y>0; y-=0.1)
    {
        m = asin(y)*ENLARGE;
        for(x=1;x<m;          ++x) printf(" ");    printf("*");
        for(   ;x<(HALF-m);   ++x) printf(" ");    printf("*\n");
    }

    for(y=0.1; y<=YMAX; y+=0.1)
    {
        m = asin(y)*ENLARGE;
        for(x=1;x<(HALF+m);   ++x) printf(" ");    printf("*");
        for(   ;x<(PERIODE-m);++x) printf(" ");    printf("*\n");
    }

    return 0;
}

 

Output:

               * *
           *         *
         *             *
       *                 *
      *                   *
     *                     *
    *                       *
   *                         *
  *                           *
 *                             *
*                               *
                                 *                             *
                                  *                           *
                                   *                         *
                                    *                       *
                                     *                     *
                                      *                   *
                                       *                 *
                                         *             *
                                           *         *
                                               * *