2楼: Originally posted by hppdyx at 2014-03-14 19:49:34
两层循环：
     1. 第一层循环alpha
     2. 第二层循环累加符号（取前n项即可，比如n=50）

3楼: Originally posted by 我要飞 at 2014-03-14 20:03:23
请教...

function hello
%%
beta = 1;
alpha = [0.1 0.3 0.5 0.8];
n = length(alpha);
x = linspace(0, 100, 500);   %x取值范围设为0到100
m = length(x);
k = 30;
z = zeros(m, 1);
%%
for nn = 1 : n
    for mm = 1 : m
        for kk = 0 : k
            zz = - (x(mm))^alpha(n) / gamma(alpha(n)*kk+beta);
            z(mm) = z(mm) + zz;
        end
    end
    figure; plot(x, z);
end

4楼: Originally posted by hppdyx at 2014-03-14 20:34:04
function hello
%%
beta = 1;
alpha = ;
n = length(alpha);
x = linspace(0, 100, 500);   %x取值范围设为0到100
m = length(x);
k = 30;
z = zeros(m, 1);
%%
for nn = 1 : n
    for mm = 1 : m
   ...

5楼: Originally posted by 徐谊 at 2014-03-14 21:30:32
你的K只是从0取到了30，这个的出来的结果应该不准确的吧？函数里面是0到无穷...

4楼: Originally posted by hppdyx at 2014-03-14 20:34:04
function hello
%%
beta = 1;
alpha = ;
n = length(alpha);
x = linspace(0, 100, 500);   %x取值范围设为0到100
m = length(x);
k = 30;
z = zeros(m, 1);
%%
for nn = 1 : n
    for mm = 1 : m
   ...

7楼: Originally posted by 我要飞 at 2014-03-14 22:22:44
请问如何将这些放在一个图片里面，也就是只画一幅图...

function hello
%%
beta = 1;
alpha = [0.1 0.3 0.5 0.8];
n = length(alpha);
x = linspace(0, 100, 500);
m = length(x);
k = 30;
z = zeros(m, n);  % 按列存储所得结果
%%
for nn = 1 : n
    for mm = 1 : m
        for kk = 0 : k
            zz = - (x(mm))^alpha(nn) / gamma(alpha(nn)*kk+beta);   % 上个给你的程序里面的alpha(n)写错了，改为alpha(nn)
            z(mm, nn) = z(mm, nn) + zz;
        end
    end
end
%% 绘图
plot(x, z);