sum+=n * factorial(n-1); 这一步函数递归调用的思路int factorial(int n){int sum=0;if(n==1)sum=1;elsesum+=n * factorial(n-1);return sum;}void main(){int i=5;printf("5's factorial is %d\n",factorial(i));}

sum+=n * factorial(n-1); 这一步函数递归调用的思路int factorial(int n){int sum=0;if(n==1)sum=1;elsesum+=n * factorial(n-1);return sum;}void main(){int i=5;printf(5's factorial is %d ,factorial(i));} sum+=n;是什么意思 这个程序的运算过程是怎么样的啊 小弟迷茫 请大哥大姐们帮忙#includelong sum(int a,int b);long factorial(int n);main(){int n1,n2;long a;scanf(%d%d,&n1,&n2);a=sun(n1,n2);printf(a=%1d,a);}long sum(int a,int b){long c1,c2;c1=f c++求解自然对数e=1+1/1!+1/2!+…+1/n!的值#includeusing namespace std;int main(){int factorial(int n);int e=1,n=1;while(1/factorial(n)>1e-6){e=e+1/factorial(n);n++;}cout 怎么用matlab画tan(x) 大约值画前六位 n=0,1,2,3,4,5 但是我画出来怎么是一条直线?大神帮我看看程序a问 我的方程是:function T=tan_taylor(x,n)T=(-1)^n*x.^(2*n+1)/factorial(2*n+1)/((-1)^n*x.^(2*n)/factorial(2*n));b问我 当n=0时,=1,当n>0时,=n(n-1)!.用对应的递归算法推求n!时的计算次数.对应的求阶乘的递归算法为：long factorial (long n){if (n matlab小段代码求解释function [R,mx,my,mse]=circle_detect(x,y)N=length(x);a1=2*(sum(x)^2-N*sum(x.*x));a2=2*(sum(x)*sum(y)-N*sum(x.*y));b1=a2;b2=2*(sum(y)^2-N*sum(y.*y));c1=sum(x.*x)*sum(x)-N*sum(x.^3)+sum(x)*sum(y.*y)-N*sum(x.*y.*y);c2=sum(x.*x 求c语言大神指导!Problems:1) The factorial of a nonnegative integer n is written (pronounced “n factorial”) and is defined as follows:=n*(n-1)*(n-2)*.*1(for value of n greater than or equal to 1)and= 1For example,= 5 × 4 × 3 × 2 × 1 = 1 程序填空 计算正整数n各位数字之和 main() {int n,sum=0; scanf (“%d”,&n); while( _⑷___ ) {sum=sum+nmain(){int n,sum=0;scanf (“%d”,&n);while( _⑷___ ){sum=sum+n%10;n= ⑸ ;}printf(“sum=%d”,sum);} while(fabs(p)>e) { p*=y/n; sum +=p; n++; } 解释一下 sum +=p是不是等于sum=sum+p #include int main() { int n,a,sum=1,k; scanf(%d,&n); for(k=n;k>0;k--) sum=sum*k; // a=su JAVA中一个英语单词后跟着一个括号是什么意思 static long Factorial(int n)(int JAVA中一个英语单词后跟着一个括号是什么意思static long Factorial(int n) matlab怎么输出结果?我用matlab输入 sum=0;n=0;while sum 以下程序的功能是计算正整数123的各位数字之和：main( ){ int n=123,sum=0;while(n!=0){ sum=sum+n%10; n= ; } printf(sum=%d ,sum); }程序的下划线处应填入的是（ ）A）n%10 B）n%100 C）n/10 D） n/100 c语言阶乘 1到20的阶乘求和,帮我看看问题出在哪里#includevoid main(){int sum=1,n;scanf(%d,&sum);do{sum=sum+n!;n++;}while(n 求这段matlab代码的输出结果N=1000X=rand(N,1);Xmean=sum(X)/N;Sigma1=sqrt(sum((X-Xmean).^2)/(N+1))Sigma2=sqrt(sum(X.^2-N*Xmean^2)/(N+1)) matlab 求亮度 程序,看不懂,function B=Brightness(Y)[m,n,d]=size(Y);b=0;if d==1B=sum(Y(:))/(m*n);endif d==3B(1)=sum(sum(Y(:,:,1)))/(m*n);B(2)=sum(sum(Y(:,:,2)))/(m*n);B(3)=sum(sum(Y(:,:,3)))/(m*n);end