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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...

14年以上前 | 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...

14年以上前 | 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'})

14年以上前 | 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...

14年以上前 | 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);...

14年以上前 | 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...

14年以上前 | 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; ...

14年以上前 | 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

14年以上前 | 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...

14年以上前 | 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

14年以上前 | 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...

14年以上前 | 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>

14年以上前 | 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...

14年以上前 | 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] = ...

14年以上前 | 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...

14年以上前 | 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 ...

14年以上前 | 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] -----...

14年以上前 | 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.

14年以上前 | 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 ...

14年以上前 | 2

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What is your time zone?
GMT+1

14年以上前 | 0

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

14年以上前 | 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...

14年以上前 | 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'...

14年以上前 | 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...

14年以上前 | 2

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

14年以上前 | 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...

14年以上前 | 0

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

14年以上前 | 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...

14年以上前 | 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...

14年以上前 | 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...

14年以上前 | 0