[求助] 如何计算递推式

2楼: Originally posted by dingd at 2012-09-22 09:36:09
r()表示什么函数啊？

4楼: Originally posted by liuhuisfp at 2012-09-22 17:29:28
#define K  10

int i;
double u;
u = 1;
for (i = 0; i <= K; i++)
      u = pow(-1, i) * gamma(i+1) / gamma(1.5 - i) * u;

fprintf(stdout, "%lf\n, u);

关键是计算Gamma函数的值，有很多 ...

6楼: Originally posted by z萝莉 at 2012-09-22 20:46:03
u=zeros(100,1);
a=zeros(100,1);
u(1)=1;
for i=1:100
a(i)=(-1)^(i-1)*gamma(i)/gamma(2.5-i);
end
for j=2:100
for i=1:j-1
u(j)=u(i)+a(i)*u(j-i);
end
end

在matlab里面数列的下表不能从0开始 ...