c语言正弦函数代码源,正弦函数c语言编程

谁能给个c语言到sin（）函数到实现源码

#includestdio.h

#includemath.h

 

double sin(double);

double nResult(double,double);

 

int main()

{

    double x=0;

    scanf("%lf",x);

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

    return 0;

}

 

double sin(double x)

{

    //sin(x)=x-x^3/3!+x^5/5!-x^7/7!+……+(-1)(n^2n+1)/(2n+1)!+……

    int i=0;

    double result=0,n=0;

    while( fabs( n=nResult(x,2*++i-1) )  0e-5 )//绝对值大于10^-5次方就循环

        result+=(i%2==1)?n:-n;

    return result;

}

 

double nResult(double x,double n)

{

    //(n^2n+1)/(2n+1)!也就是n/1*n/2*n/3*n/4*.....n/(2n+1)

    return n==1?x:nResult(x,n-1)*x/n;

}

C语言怎么编写正弦波

源代码如下：

#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;

}

扩展资料

C语言编写一个程序输出一个正方形的源代码如下：

#include

int main()

{

int i,j,n;

scanf("%d",n);

for(i=0;i     

printf("*");

else

printf(" ");

}

printf("\n");

}

return 0; 

}

正弦函数C语言编程

#include stdio.h

#include math.h

#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;

}