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genevois pierre
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Question
computing a sequence of vectors
the sequence is defined, for i = 1:n, by this vectorial recurrence relation : [A(i+1); B(i+1)] = Q * [A(i); B(i)] + [C; D] wit...
3 years ago | 1 answer | 0
1
answerQuestion
how to stop executing a function if its duration is too long ?
Hi, the solve function (applied to a hard problem) still executes after a 30 minutes run ... Can it be stopped by the calling pr...
3 years ago | 1 answer | 0
1
answerusing symbolic calculus on char strings (coming from a file)
Thank you for your answer ; a warning when using str2sym could mean that this function will be removed in a future version ? How...
5 years ago | 0
| accepted
Question
using symbolic calculus on char strings (coming from a file)
Hello, I'm currently using str2sym on char strings obtained from fgetl on a text file containing many lines of mathematical expr...
5 years ago | 1 answer | 0
1
answerQuestion
behavior of for loop with strings of chars ?
Hi, this for statement for string = ['=A=', '=B=', '=C='] [starts, ends] = regexp(line, string); the ...
6 years ago | 1 answer | 0
1
answerQuestion
how to replace 'x\d+' by 'X(...same number as \d+ ...)' such as x45 --> X(45) using regexprep ?
Hello, I'm searching for replacing, in a text file, strings having 'x' as only non numeric character at the beginning, followed...
6 years ago | 1 answer | 0
1
answerQuestion
accessing to some ga's parameters
Hi, I cannot access to some values of parameters of ga as (names = values hereafter) : options_ga.FitnessScalingFcn = @fitsc...
6 years ago | 0 answers | 0
0
answersQuestion
how to count the number of function calls without modifying it by inserting a counter ?
Hi, for example in ga(...), the count of objective function calls is provided, but not that of the constraint function. My unsat...
6 years ago | 2 answers | 0
2
answersQuestion
a test to exclude inf and nans from pinv(...) doesn't work
Hello, having this error : Error using svd Input to SVD must not contain NaN or Inf. Error in pinv (li...
6 years ago | 1 answer | 0
1
answerconstrained pso : how to set initial population ?
I get the same problem ... probably due to the call to fmincon in psocheckinitialpopulation, line 99.
7 years ago | 0
Question
constrained pso : how to set initial population ?
hi, i tried options = optimoptions('particleswarm', 'InitialPopulation', tous_xi); where tous_xi contains initial position...
7 years ago | 3 answers | 0
3
answersQuestion
options_pso.InitialPopulation : how to assign ?
hi, i now get an error when setting options.InitialPopulation = [1,2,3] for example, after having run options=pso . Can you help...
7 years ago | 1 answer | 0
1
answerQuestion
constrained pso : Not enough input arguments.
hi, in my code, I use [x, fval, exitflag] = pso(mapse_vu_sd, 7, [], [], [], [], ... lx, ux, mapse_CNL_sd_c) and I g...
7 years ago | 1 answer | 0
1
answerWhat exactly does TolCon do and how is relative max(constraint violation) calculated?
hi, the link in "Tolerances are described here" is not set : could you arrange this ? Thank you.
12 years ago | 0
Question
index of control loop that is a vector component
hi all, in order to make my code more compact, i tried this : for x(1) = lb(1) : d_x(1) : ub(1) for x(2) = lb(2) :...
12 years ago | 1 answer | 0
1
answerQuestion
How can I extract column vectors from matrix (with large number of columns) ?
Having a lot of columns, this way of extracting from a big matrix named C : temperature = C(:,1); index = C(:,2); ... ...
12 years ago | 2 answers | 1