Please ans this....how to write the equation into Matlab Code
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5 个评论
VBBV
2021-4-26
Read about integral or cumtrapz functions
Jan
2021-4-26
Do you want to solve this symbolically or numerically?
Kunwar Pal Singh
2021-4-26
Kunwar Pal Singh
2021-4-26
how to write this equation in matlab code for PSO algorithm
Walter Roberson
2021-4-26
To search for a maximum, minimize the negative of the result equation that I posted.
You can use lower bound and upper bound to apply those constraints. I suspect that t_1 should have a lower bound of 0.
采纳的回答
%these variables must be defined in a way appropriate for your situation
S_N = rand() * 10
theta = randn() * 2 * pi
l = randi([2 10])
b_1 = rand()
c_11 = rand()
t_year = randi([1950 2049])
d_11 = rand()
t_1 = rand()
t_x = t_1 + rand()
lambda_a = randi([500 579])
LOTF_a = rand()
P = rand()
K_l = rand()
k_0 = rand()
t_tau = randi(10)
overhaulcost_a = 1000 + rand()*100
%the work
syms t
part1 = int(S_N .* cos(theta) .* l .* b_1 .* t_year .* d_11, t, t_1, t_x);
part2 = int(lambda_a .* LOTF_a, t, t_1, t_x);
part3 = int(P*K_l .* t_year + P .* k_0 .* l .* l .* t_tau, t, t_1, t_x);
part4 = overhaulcost_a ;
result = part1 - part2 - part3 - part4;
result
4 个评论
Walter Roberson
2021-4-26
I think it likely that your equations are wrong. All three integrals that you are doing are integrals over t, but all three of the expressions to be integrated are independent of t . Two of them are dependent on t_year and one is dependent on t_tau but neither t_year nor t_tau are the variables of integration.
Kunwar Pal Singh
2021-4-26
Walter Roberson
2021-4-27
Remove the semi-colons if you want the partial results to be displayed.
Kunwar Pal Singh
2021-4-27
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