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pxg882


University of Birmingham

Active since 2012

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Question


Rotate ylabel and keep centered
Hi, Is there anyway to rotate the ylabel on a plot and ensure that the label is still centered on the axis? Using se...

bijna 9 jaar ago | 3 answers | 1

3

answers

Question


Latex interpreter not working?
I am adding this label to a figure I am plotting; ylabel('$\kappa$','interpreter','latex','FontSize',30); However, the \...

bijna 11 jaar ago | 0 answers | 0

0

answers

Question


Using fprintf to print to a text file
This prints my 6 sets of data as one continuous column of data in a .txt file. fileID = fopen('nN_10.txt','w'); fprintf(...

bijna 11 jaar ago | 1 answer | 0

1

answer

Question


Oscillatory solutions problem ODE45
Hi all, I'm solving this set of ODEs: function Y=b(zeta,X) dF1dzeta=X(2); dF2dzeta=X(1)^2-X(3)^2+X(2)*X(5)+1; ...

meer dan 11 jaar ago | 0 answers | 0

0

answers

Question


Plotting asymptotic limits, interpolation
Hi, I'm plotting the following set of data x = [0.6 0.65 0.7 0.75 0.8 0.85 0.9 0.95 1.0]; y = [1.7764 1.4849 1.3076 1.18...

bijna 12 jaar ago | 1 answer | 0

1

answer

Question


Spline Interpolation Code Error
Does anybody know why this code isn't running? x = -4:4; y = [0 .15 1.12 2.36 2.36 1.46 .49 .06 0]; cs = spline(x,y);...

ongeveer 12 jaar ago | 0 answers | 0

0

answers

Question


Typesetting in a figure legend
Hi, I want to be able to write '\bar{u}' and '\bar{\bar{u}}', for example, in the legend of a figure I have produced. Does an...

ongeveer 12 jaar ago | 1 answer | 0

1

answer

Question


Imposing boundary conditions to a shooting method
I am shooting a 5th order system for {F,F',G,G',H}(all of which are functions of the similarity variable eta) specifying the con...

ongeveer 12 jaar ago | 0 answers | 0

0

answers

Question


Using event function multiple times
Hi, I am using the event function whilst solving a system of ODEs but I would like to find where multiple functions are 0. I've ...

ongeveer 12 jaar ago | 0 answers | 0

0

answers

Question


Using a large integration range and ode45
Hi all, I have a set of equations that needs to be solved over a very large domain (say x > 1000, where x is the integration ...

ongeveer 12 jaar ago | 1 answer | 0

1

answer

Question


singular Jacobian encountered bvp4c
I'm following the bvp4c example 5 found here: http://www.mathworks.co.uk/matlabcentral/fileexchange/3819-tutorial-on-solving-...

ongeveer 12 jaar ago | 0 answers | 0

0

answers

Question


bvp4c failing to produce the correct solution
I'm running the following: function M = SwirlingFlow(~) M = bvpinit(linspace(0,30),@VKinit); options = bvpset...

ongeveer 12 jaar ago | 0 answers | 0

0

answers

Question


Increasing number of points bvp4c
I'm running the following script function M = SwirlingFlow(~) M = bvpinit(linspace(0,20,241),@VKinit); options ...

ongeveer 12 jaar ago | 0 answers | 0

0

answers

Question


How to apply a specific condition whilst using ode45
I need to implement a specific condition on the functions that I am evaluating using ode45. Is there a way to ensure that the od...

ongeveer 12 jaar ago | 0 answers | 0

0

answers

Question


Applying an Asymptotic Condition to a Shooting Method Script
Hi all, I need to apply an asymptotic boundary condition for a shooing method script that I am using and was wondering if any...

ongeveer 12 jaar ago | 0 answers | 0

0

answers

Question


ode45 failing to produce a solution
I'm looking for some help with ode45 solver. I have the following set of ODEs: function Y=f(~,X) n=1.3; dF...

ongeveer 12 jaar ago | 2 answers | 0

2

answers

Question


Finding where curves are approximately equal to zero
Hi all, I need to find where a collection of curves are all approximately equal to zero (given some tolerance level) and was ...

meer dan 12 jaar ago | 1 answer | 0

1

answer

Answered
Singular Jacobian Error Message
Thanks for taking the time to look at this. I didn't realise how horribly my code had been displayed on here. Changing the bo...

meer dan 12 jaar ago | 0

Question


Using the Shooting Method
Hi all, I'm looking to solve the following system of equations with boundary conditions using the shooting method: F''=F^2...

meer dan 12 jaar ago | 1 answer | 0

1

answer

Question


Singular Jacobian Error Message
Hi all, I'm running the following code: function M = nonNewtonian(~) M = bvpinit(linspace(0,10,301),@VKinit); ...

meer dan 12 jaar ago | 2 answers | 0

2

answers

Question


How to implement the shooting method
Hi. I'm attempting to solve the the ODEs one arrives at when analysing the problem of the flow due to a rotating disk, that is:...

meer dan 12 jaar ago | 0 answers | 1

0

answers