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Given an equation, i have to graph it in 3D and it should look like a water ripple
amp=200; [x,y]=meshgrid(0:100,0:100); const1=1; const2=0.001; z=(amp*cos(sqrt((x.^2+y.^2)*const1))./exp((x.^2+y.^2...

fast 15 Jahre vor | 0

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ERROR USING SET() ? GUI, Handles
It looks like you have your code inside a while loop, when you exit your GUI the handles are deleted but the loop still tries to...

fast 15 Jahre vor | 0

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Colorbar related
colorbar('YTickLabel',... {'-3*10^-4','-2*10^-4','-1*10^-4','0',... '1*10^-4','2*10^-4','3*10^-4'})

fast 15 Jahre vor | 0

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Conversion to double from sym is not possible
Your expressions R2 and x got several symbolic variables and because of that you can't convert it to double (by using double(exp...

fast 15 Jahre vor | 0

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Plotting several graphs in one plot
Do it like this: s1=subplot(311);hold(s1) %create each subplot and hold it s2=subplot(312);hold(s2) s3=subplot(313);...

fast 15 Jahre vor | 0

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Customize a colormap
maybe this c=zeros(64,3); c(1:16,1)=1; %red c(17:32,1)=1; %orange c(17:32,2)=0.5; %orange c(33:49,1)=1; %yellow...

fast 15 Jahre vor | 0

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How to represent two different quantities in the same 3d figure?
One simple example: x1 = [0:.1:40]; y1 = 4.*cos(x1)./(x1+2); z1=2*sin(x1); x2 = [1:.2:20]; y2 = x2.^2./x2.^3; ...

fast 15 Jahre vor | 0

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out of scope timer or not saved to variable
delete(timerfindall) %if you only have that timer %timerfindall is a MATLAB function

fast 15 Jahre vor | 0

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GNU Octave vs. Matlab
The Mathworks has nothing to fear, their software (MATLAB+Simulink+Toolboxes) is very mature and well documented, it is expensiv...

fast 15 Jahre vor | 1

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Expanding and interpolating between sequential values in a nx2 matrix
m=[1 3; 2 6; 3 1; 4 9]; mm=interp2(m); mm(:,2)=[]; %remove the midle column mm %your result

fast 15 Jahre vor | 0

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dialog box option instead of the input command
prompt = {'Enter ulimit:','Enter llimit:'}; dlg_title = 'Enter the limits'; num_lines = 1; def = {'1','2'}; %default...

fast 15 Jahre vor | 0

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How to create s-function in simulink with m-file
<http://www.mathworks.com/help/toolbox/simulink/sfg/f7-67622.html Writing Level-2 MATLAB S-Functions>

fast 15 Jahre vor | 1

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compass axis labels
<http://www.mathworks.com/support/solutions/en/data/1-DRAF4Z/index.html?product=SL&solution=1-DRAF4Z How to change the axis lim...

fast 15 Jahre vor | 0

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compass plot
amp = [1.0448,0.365,0.0712,0.0622,0.1027]; pha = [77.16,105.75,61.67,320.84,101.95]; rdir = pha * pi/180; [x,y] = ...

fast 15 Jahre vor | 0

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Beginner Question on Older Version 6.5.0 or (R13)
You don't have the Symbolic Math Toolbox™ installed. Execute this: ver and see if the Symbolic Math Toolbox™ is on the list...

fast 15 Jahre vor | 0

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IF statements to compare Imaginary Numbers
Do this D==X1 ans= 1 0 It's really something about floating point, try doing this: (D>=X1-eps & D<=X1+eps) now ...

fast 15 Jahre vor | 0

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Relay block to generate signal PWM
Why do you need the relay block to generate the PWM? This should suffice: [sine wav] -----> [compare to constante] -----...

fast 15 Jahre vor | 1

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Cobweb graph
Check this it <http://www.math.uu.se/~warwick/vt04/DynSyst/matlab/cobweb.m cobweb by Warwick Tucker> , it works very good.

fast 15 Jahre vor | 0

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Get value from simulink model to matlab gui while simulink is running
# When you use get_param where? what block and what code? # That command can only get the parameters supported by the block you ...

fast 15 Jahre vor | 2

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What is your time zone?
GMT+1

fast 15 Jahre vor | 0

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m files as Function Inputs !!
function d = delayMethod(filename1,filename2) data1 = importdata(filename1); data2 = importdata(filename2); ...

fast 15 Jahre vor | 0

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Slider in GUI
not working? how can we help if you don't provide enough details (error message at least), please be sure that variablemax and m...

fast 15 Jahre vor | 1

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how to use plot?
Maybe this syms x th=[0:0.05:1.57]; [x]=solve('cos(th+x)=0','x'); f=subs(x,'th',th); plot(th,f,th,cos(th),'r'...

fast 15 Jahre vor | 0

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What does Answers provide that CSSM, Stack Exchange, etc do not
The voting system allows any user to see the best answers right away without having to read all answers and comments. The mar...

fast 15 Jahre vor | 2

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Plot in complex plane - Symbolic toolbox
That doesn't look like MATLAB code, are you using MUPAD instead?

fast 15 Jahre vor | 0

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quick question for pade function
[num den]=pade(100,1) num= -s+0.02 -> one zero at s=0.02 den= s+0.02 -> one pole at s=-0.02 You can see the zeros and poles l...

fast 15 Jahre vor | 0

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integration
yes and no, to do symbolic integration use int syms x int(x*log(1 + x), 0, 1)

fast 15 Jahre vor | 1

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Change time function tic, toc
It's just the same like you going from your house to the supermarket expecting to always take the same time up to the second, th...

fast 15 Jahre vor | 1

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How to stop a script from executing
%code error('Mid script reached, this error message was made on purpose') %code Another alternative could be the us...

fast 15 Jahre vor | 1

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ismember error
It works just fine in this example, you also don't need the ==1 in the find argument. A={'580135' '803111' '803111' '803111...

fast 15 Jahre vor | 0