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Optimization Routine for two equations, three unknowns
Hi, I am trying to set up a basic optimization routine in matlab. Equation 1: 3.6*x*y = 750 Equation 2: 19.8*x*y*z = 8...
fast 6 Jahre vor | 1 Antwort | 0
1
AntwortFrage
Shortening nested If statements
HI Friends, I am trying to shorten this nested if statement, is there a way to make it more compact ? GR = [3.78 2.0...
etwa 6 Jahre vor | 1 Antwort | 0
1
AntwortFrage
Plot multiple plots on the same graph
Hi , I wish to plot these graphs as a function of Tpack % Temperature of battery pack. There are two temperatures , Tpack = [...
etwa 6 Jahre vor | 2 Antworten | 0
2
AntwortenFrage
Combine multiple if statements for something more compact
Friends, I'm trying to refine my code.It works fine but I have four if conditions which I want to make more efficient. Is the...
etwa 6 Jahre vor | 2 Antworten | 0
2
AntwortenFrage
Create a single for loop for multiple conditions
Hi, I have a for loop with several calculations. There are three conditions for which the calculations are more or less the sa...
etwa 6 Jahre vor | 1 Antwort | 0
1
AntwortFrage
How to plot a parametric study on a single graph
Hi, Suppose I have a code a= [1 32 51 24 5 23] for i=1:length(a) c=a(i)+d; b=a(i)+e; end ...
fast 7 Jahre vor | 1 Antwort | 0
1
AntwortFrage
How to plot symbolic variable that has a polynomial ?
Hi all. I have a code, i need to plot y vs the syms variable Lambda_avg as given in the last line. How do i plot so that i ca...
fast 7 Jahre vor | 1 Antwort | 0
1
AntwortFrage
How to know what at iteration is the minimum value occuring?
Hi All Suppose I have a matrix A [ 9 8 6 7 8 2 5 9 6 ] . The minimum occurs at the 6th element. What code does one use to fin...
etwa 7 Jahre vor | 1 Antwort | 0
1
AntwortFrage
Optimization Function for Costs (fminbnd)
Hi, I have to optimize the cost using the fminbnd function I am getting a scalar error while the code runs the fminbnd fun...
etwa 7 Jahre vor | 1 Antwort | 0
1
AntwortFrage
Subscript indices Error for a Plot
Hi I am trying to calculate power but I cant seem to find out what is wrong (im a novice in matlab) The error is in the line f...
etwa 7 Jahre vor | 1 Antwort | 0
1
AntwortFrage
Trouble with ODE45 for an array of values
Hi, I have an equation udC/dx=R, where C and R are arrays. I've written a code but its giving a linear plot. Need help ...
etwa 7 Jahre vor | 2 Antworten | 0
2
AntwortenFrage
Finite Difference Scheme Error
Hi, I am trying to plot this equation , i am unable to understand how to debug the matrix error on the equation. % Soluti...
etwa 7 Jahre vor | 1 Antwort | 0
1
AntwortFrage
How to compute a finite difference with variables that are arrays
<</matlabcentral/answers/uploaded_files/74497/Screenshot_13.png>> Hi, I have to compute the above. The methodology is ...
etwa 7 Jahre vor | 0 Antworten | 0
0
AntwortenFrage
Setting up ODE in Matlab for ODE 45 solver
Hi, I am having difficulty setting this problem up for the ODE45 solver. It is a kinetics equation, relating R (rate constant...
etwa 7 Jahre vor | 1 Antwort | 0
1
AntwortHow to solve an ODE with an array using ODE45?
% Solution 4: Chemical Species Concentration as a Function of Axial Distance clc clear % Constants L = 0.12; N...
etwa 7 Jahre vor | 0
| akzeptiert
Trouble with ODE45 for an array of values
% Solution 4: Chemical Species Concentration as a Function of Axial Distance clc clear % Constants L = 0....
etwa 7 Jahre vor | 0
| akzeptiert
Frage
How to solve an ODE with an array using ODE45?
I have an ODE, udY/dx=S , where Y and S are arrays , how do I solve it using ODE45 ???
etwa 7 Jahre vor | 3 Antworten | 0
3
AntwortenEnd a Calculation if a condition is satisfied.
while abs(rk4-imp)>=0.00001 N_euler = N_euler+1; delxeuler=L/(N_euler-1); for j=1:N_euler-1 ...
etwa 7 Jahre vor | 0
| akzeptiert
Executing the while loop
Figured it out ! Thanks for your help ! % RK4 Method vs Implicit Euler Method clear all;close all; clc; form...
etwa 7 Jahre vor | 1
| akzeptiert
Frage
Executing the while loop
Guys there is something wrong with my while loop. The while loop is supposed to run for 7389 iterations , but it only does two. ...
etwa 7 Jahre vor | 3 Antworten | 0
3
AntwortenFrage
End a Calculation if a condition is satisfied.
I have a calculation to perform: Part A (Number of iterations are known) ODE is solved using Runge Kutta 4 and I get an a...
etwa 7 Jahre vor | 2 Antworten | 0
2
AntwortenFrage
How to break a code when conditions are met
So I have a code with 2 numerical methods - backward euler and Runge kutta. What I want to do is create a program that calculate...
etwa 7 Jahre vor | 1 Antwort | 0
1
AntwortStopping an Iteration when conditions have been met
Can anyone suggest to me in general how you dynamically change the iterations ? I want the iteration of the euler implicit to ...
etwa 7 Jahre vor | 0
Frage
Stopping an Iteration when conditions have been met
Hi guys, im trying to create a loop where I have to compare the euler implicit and RK4 method to compare the accuracy. The impli...
etwa 7 Jahre vor | 3 Antworten | 0