c語(yǔ)言正弦函數(shù)代碼源,正弦函數(shù)c語(yǔ)言編程
誰(shuí)能給個(gè)c語(yǔ)言到sin（）函數(shù)到實(shí)現(xiàn)源碼
#includestdio.h
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#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?)//絕對(duì)值大于10^-5次方就循環(huán)
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語(yǔ)言怎么編寫正弦波
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(kuò)展資料
C語(yǔ)言編寫一個(gè)程序輸出一個(gè)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;?
}
正弦函數(shù)C語(yǔ)言編程
#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;
}
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