Community Profile

shirin mhd

Last seen: oltre un anno fa | Attivo dal 2022

Followers: 0 Following: 0

Statistiche

Visualizza badge

Feeds

Domanda

does 'VPA' changes the type of a data variable ?
Hi everyone I have a question about the data type. I know that all data are double floating-point in Matlab by default. I've...

oltre un anno fa | 1 risposta | 0

1

risposta

Domanda

plot an eight variable function
Hi everyone I have an equation with 8 variables. I know how to plot a 3-variable equation in Matlab, but I need to plot this fu...

oltre un anno fa | 1 risposta | 0

1

risposta

Domanda

Weird-Confusing mistake in subtraction result!!!!
Hi everyone I have a weird problem with a simple subtraction. Here is my code. I define 'R' and 'a1 to a8': R=194067676.88629...

oltre un anno fa | 1 risposta | 0

1

risposta

Domanda

using GA including a hybrid function option
Hi everyone I have a problem related to how to use options in GA . I want to use a hybrid function like fmincon. n1=1; n2=5;...

oltre un anno fa | 1 risposta | 0

1

risposta

Domanda

if clause for a nonscalar operator
Hi everyone I have this code: p=[]; if p==[] disp('hello') else disp('bye') end and I expect this answer: >> t...

oltre un anno fa | 1 risposta | 0

1

risposta

Domanda

"Could not find a feasible initial point" error in GA.
Hi everyone I try to optimize a problem that is visible below: a1=3.51e9; a2=750.9; a3=1.93e8; a4=8.10e8; a5=min(a3,a2); a6...

quasi 2 anni fa | 1 risposta | 0

1

risposta

Domanda

ga optimization changing answer
Hi everyone I have a question about GA optimization answer. I want to optimize this function with 5 variable, as below: Q=ga(...

quasi 2 anni fa | 1 risposta | 0

1

risposta

Domanda

Inner matrix dimensions must agree error in ga
Hi every one I have this function and constraint as below for optimizing by ga. function=1.11e-4*((z).^2)-(4.46e3*(z)) A=[1...

circa 2 anni fa | 1 risposta | 0

1

risposta

Domanda

inserting index for variable
Hi everyone! I want make index for my variable. I write a simple code: x=8; b=9; for i=1:2 w(i)=x+b u=x+w(i) end ...

circa 2 anni fa | 1 risposta | 0

1

risposta

Domanda

Matrix calculation(replacing a new value instead of matrix element)
Hi everyone I've written this code. my purpose is to make a matrix(1*3), which each element (T1,T2,T3) of that is calculated in...

circa 2 anni fa | 3 risposte | 0

3

risposte

Domanda

the meaning of a sentence in command window
Hi I run a code, and it operates correctly without any error.at the end of command window i view this message: Optimization ...

circa 2 anni fa | 4 risposte | 0

4

risposte

Domanda

strange format of result(division operation)
Hi everyone I've written this code: syms x >> f=-5e-6*((x).^2)+3.21e2*(x); >> eq=diff(f)==0; >> allocate=solve(eq) and the...

circa 2 anni fa | 1 risposta | 0

1

risposta

Domanda

problem in showing result
Hi everyone I've written this code (this is part of my main code). x11Range=[minValue11, maxValue11]; minValue11<= x11 <...

circa 2 anni fa | 1 risposta | 0

1

risposta

Domanda

finding common rang between two different range?
Hi everyone I'm new to matlab and because of that my question may be so easy to others.I really appreciate your help. I have x...

circa 2 anni fa | 2 risposte | 0

2

risposte