绘制余弦曲线和直线

#include

#include

int main()

{

double y;

int x,m,n,yy;

for(yy=0;yy<=20;yy++)

{y=0.1*yy;

m=acos(1-y)*10;

n=45*(y-1)+31;

for(x=0;x<=62;x++)

if(x==m&&x==n) printf("+");

else if(x==n) printf("+");

else if(x==m||x==62-m)printf("*");

else printf(" ");

printf("\n");

}

return 0;

}

​