Answered
updating handles in gui/guide for webcam
Christian, I solved a similar problem by removing the associated field of the |handles| object. So essentially (and following...

8 years ago | 0

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how to display all iterations in one matrix...below is the code which i run and get the value of z in separate vectors..how to combine them in one.
Quick and dirty: z = []; for x = E1 for y = E2 f = C*(DP1*x+DP2*y); z = [z; x y f] end end

8 years ago | 1

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Answered
ode45 Event Option
Duncan, I put the entire code into one file and slightly changed the code (ode calls), see attachment. Works for me. One more...

8 years ago | 0

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How can I plot a function with parametric if (change between parameters)
Chris, this should do the trick r = 0:0.1:20; r0 = 12.5; t = 39.64*(r<=r0) + 51.4875*exp(0.14*(16.37 - r)).*(r>r0); ...

8 years ago | 0

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Answered
Using a matrix of solution elements outside of ode45
Duncan, how about simply re-building the matrix after the |ode45|-call? I assume all those variables are dependent on time, dist...

8 years ago | 0

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plotyy: problem with ticks
Marco, still not quite sure about the end result. How about adding set(ax(1),'YLim',[minimum_left, maximum_left]) set(ax(2...

8 years ago | 1

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Answered
How to access number of rows in one step?
Try size(theMatrix,1)

8 years ago | 1

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Answered
how can i find the location of the largest element in a 2-D matrix not in a column or row matrix?
Navneet, e.g. A = [1 2 3; 2 3 4; 3 2 1] A = 1 2 3 2 3 4 3 2 1 [row,col] = fin...

8 years ago | 1

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Answered
Help with solve please
Jonathan, use <https://www.mathworks.com/help/optim/ug/fsolve.html |fsolve|> instead.

8 years ago | 0

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Problem about plotting 2D about multiple of functions
Amin, use instead y = floor(sin(x)) .* floor(x); % notice the period before the * This allows you to do element-wise mult...

8 years ago | 1

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Answered
rlocus showing overshoot, step showing none?
Robert, the overshoot information that is shown in the root locus plot needs to be taken with a grain of salt. It essentially on...

8 years ago | 1

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How to redirect user if they enter an incorrect input
Bree, without knowing the structure of your program I would suggest using a <https://www.mathworks.com/help/matlab/ref/while.htm...

8 years ago | 3

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Logical indexing: More than two conditions
Do you mean x = -10:10; y = (x>=0 & x~=2).*x.^3 + (x<0).*x.^2 + (x==2).*x

8 years ago | 2

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Answered
my laptop doesnt have enough storage for install the matlab ,there is no portable matlab available?
Elmira, depeding on your license you might have access to <https://www.mathworks.com/products/matlab-online/ MATLAB Online> and ...

8 years ago | 1

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ode45 and additional parameters - Growth Equation
Victor, check out the following: function myODE() tspan = [0 25]; % y0 = [1 1]; % these are the initial conditi...

8 years ago | 1

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Answered
How to draw a polar graph from r=0?
Yuval, looks like you only need to increase the number of data points (|theta|): theta = 0:0.001:2*pi; or something like ...

8 years ago | 0

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Answered
For simple transfer function getting different result in matlab code and simulink for same pid values.
Sadeep, Fig 1. looks very much like the step input (rather than the step response). Compare this figure to g = tf(1,1) g =...

8 years ago | 0

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Trying to plot the surface and contour plot (surfc) of the temperature distribution of a 1x1 metal plate that goes from (0,0) to (1,1), while it's heated to 100 degrees C on the corner (1,1). THANK YOU!!
Brandon, use x = linspace(0,1); y = linspace(0,1); [xG,yG] = meshgrid(x,y); T = 100*(exp((-0.1)*((xG-1).^2))).*(exp((-0....

8 years ago | 1

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Answered
Why wont the divide operator work?
Julia, are you showing all the code? Looks like the variable |a| is not defined. As for the plot command: one of the round br...

8 years ago | 0

Answered
My code is producing two answers, but it is only supposed to print one.
DJ, the function is only returning only one variable, |payment|. |pay2| is only displayed because there is no semi-colon afte...

8 years ago | 0

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Matlab function holding first value?
Hi Péter, this is explained well in the documentation <https://www.mathworks.com/help/matlab/matlab_prog/anonymous-functions.htm...

8 years ago | 1

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problem with reduceDifferentialOrder -> massMatrixForm -> odeFunction
Carlos, the <http://www.mathworks.com/matlabcentral/fileexchange/49796-euler-lagrange-tool-package Euler-Lagrange tool package> ...

8 years ago | 0

Answered
phase plane in MATLAB?
Hello, check out the code below: function my_ODE() th0 = 0; Dth0 = 1; tspan = linspace(0,2,200); o...

8 years ago | 1

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8 years ago | 0

Answered
Hi, what should I do to get the 'Not enough input arguments'-error,
Rebecca, yes. Use something like function d = inputErrorCheck(a,b,vargin) switch nargin case 3 if ...

8 years ago | 0

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If I have a matrix of 100 rows by 5 columns, how can I make it a 1 row x 500 column matrix, where each row (1x5) is placed one after the other to make a 1x500 matrix?
Use the <https://www.mathworks.com/help/matlab/ref/reshape.html |reshape|> command.

8 years ago | 0

Answered
How to use fmincon on an symbolic integral function
Sylvia, use <https://www.mathworks.com/help/matlab/ref/integral2.html |integral2|> in combination with |fmincon|.

8 years ago | 0

Answered
Problem with using ode45 event option
Sourav, you need to improve the accuracy of the integration. E.g. this seems to work: options = odeset('RelTol',1e-7,'AbsTol...

8 years ago | 0

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Answered
problem with symbolic to function handle
How about syms x y z f = x*y*z+x*2*y; G = gradient(f); m = matlabFunction(G); [X,Y,Z] = meshgrid(-3:1:...

8 years ago | 1

Answered
How can I graph all the values of n in the while loop ? Theres my program.
Something like this? Not quite sure what you want your x-axis to be. n = input('Enter a natural number'); cont=1:1:n; ...

8 years ago | 0