C語言怎麽編寫正弦波

源代碼如下：

#include#include#define EX 0.000001

#define PI 3.14159265

int main()

{

double x=0.0, temp=1.0, sin=0.0;

int i;

printf("Please input a degree:");

scanf("%lf",&x);

x=x*PI/180;

temp=x;i=0 ;

while ( fabs(temp) >EX ) ...{

sin += temp;

i += 2;

temp = (-1) * temp*x*x/( (i+1)*(i) );

}

printf("sin(%lf) = %lf ",x,sin);

printf("The number is %d ",i);

return 0;

}

擴展資料

C語言編寫壹個程序輸出壹個正方形的源代碼如下：

#include?

int?main()

{

int?i,j,n;

scanf("%d",&n);

for(i=0;i

printf("*");

else?

printf("?");

printf("\n");

}

return?0;?

}