For Loop That Uses A Found Value To Complete the Next Loop

Question

Jordan David 2023-5-1

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1955739-for-loop-that-uses-a-found-value-to-complete-the-next-loop

评论： Jordan David 2023-5-6

采纳的回答： VBBV

Hello! How can I use a for loop to run a code that uses a found value from the previous loop, to compute the next loop?

The base equation for this loop looks like

P2=(P1)(exp(-(z2-z1)/(R*T))

where Z has bounds a and b and has intervals of 50. P1 and T are referenced indicies of a known vector. The next iteration of the loop would then subsitute the previous P2 in for P1 and run again.

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

VBBV 2023-5-1

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1955739-for-loop-that-uses-a-found-value-to-complete-the-next-loop#answer_1226494

编辑：VBBV 2023-5-1

在 MATLAB Online 中打开

Do you mean something like this ?

z2 = 10;
Z1 = 4;
P2 = zeros(1,length(P1));
for J = 1:Array_range_max
    % P1 computed in this loop
    P1 = rand(1,10);
    % assume z1 and z2 are scalars
    for k = 1:length(P1)-1
        P2(k) = P1(k)*exp(-(z2-z1)./(R*T(k)));
        P1(k+1) = P2(k);
    end
end

3 个评论
显示 1更早的评论隐藏 1更早的评论

VBBV 2023-5-2

在 MATLAB Online 中打开

z = 0:50:1700;
size(z)
ans = 1×2
     1    35
P1 = 9.79419e4;
a = 29.3;
% assume average of (T_(2,:))+(T_(1,:)).\2
T = randi([0 240],341,1);
P2 = zeros(341,length(z));
%outer loop 
% for Tavg = 1:array_size_temperature
    % T = randi([0 240],341,1);
    for J = 1:size(P2,2)    
        % P1 computed in this loop
        P2(:,J) = P1.*exp(-z(J))./(a.*T);
        P1 = P2(:,J);  
    end
%end // end of outer loop 
P2
P2 = 341×35
1.0e+03 *

    0.0201    0.0000    0.0000    0.0000    0.0000         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0
    1.6714    0.0000    0.0000    0.0000    0.0000         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0
    0.1453    0.0000    0.0000    0.0000    0.0000         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0
    0.0152    0.0000    0.0000    0.0000    0.0000         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0
    0.0189    0.0000    0.0000    0.0000    0.0000         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0
    0.0154    0.0000    0.0000    0.0000    0.0000         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0
    0.0156    0.0000    0.0000    0.0000    0.0000         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0
    0.0376    0.0000    0.0000    0.0000    0.0000         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0
    0.0655    0.0000    0.0000    0.0000    0.0000         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0
    0.0293    0.0000    0.0000    0.0000    0.0000         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0         0