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Need help creating simple plot (3d plot?)
Ulrik, one option would be a surface plot: n = 100; x = linspace(0,4,n); y = linspace(0,4,n); [X,Y] = meshgrid(x,y); ...

quasi 12 anni fa | 1

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Change elements by a set amount.
Justin, do you mean delta = delta - delta/2 + 1 ?

quasi 12 anni fa | 0

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Find value of x, from max y (graph)
Andrew, check out x = 0:0.1:6; y = sin(x + 0.5); vel = diff(y)./diff(x); plot(x(1:end-1), vel,x(vel == max(vel)),m...

quasi 12 anni fa | 0

Risposto
Row and column lsim error?
Hello Raymond, the system has two inputs, therefore the input signal needs to be a 2-by-n vector. Use, e.g. ... t = 0:0.01...

quasi 12 anni fa | 0

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Risposto
Problem using Left Hand Division in MATLAB
Michael, the answer (zero-vector) is correct. If you do rank(sysEq) you'll see that the matrix has full rank (= 3). This ...

quasi 12 anni fa | 0

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Repeating triangular block in Simulink
Chess, how about using the <http://www.mathworks.com/help/simulink/slref/signalbuilder.html Signal Builder> block?

quasi 12 anni fa | 0

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Indexing cannot yield multiple results error
Ole, the problem is in this statement vx = vx + ax*dt vy = vy + ay*dt These should be two separate statements. Change it ...

quasi 12 anni fa | 0

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Lego mindstorms NXT support package
Nauman, in MATLAB simply go to |Resources > Add-Ons > Add Hardware Support Packages|, select and download the NXT package for fr...

quasi 12 anni fa | 0

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Risposto
How do I plot this function in MATLAB?
Michael, use something like [x,y] = meshgrid(0:0.1:5,0:0.1:5); Z = sin(sqrt(x.^2 + y.^2))./(sqrt(x.^2 + y.^2)) ; surf(x,...

quasi 12 anni fa | 0

Risposto
Second Y-axis on the figure window
Aftab, use |<http://www.mathworks.com/help/matlab/ref/plotyy.html plotyy>|. Alternatively, use <http://www.mathworks.com/help/ma...

quasi 12 anni fa | 0

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Risposto
Problem with using lsim which lead to row and column error ?
Hello Raymond, your system has two inputs, therefore |w| needs to be a 2-by-n array, rather than a 1-by-n. Use instead: ... ...

quasi 12 anni fa | 0

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Risposto
How to move a circle on a sine curve?
Airas, use something like ... h = fill(x,y,'y'); axis ([0,200,0,50]) axis equal axis manual for ii = 0:200 ...

quasi 12 anni fa | 1

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Plotting multiple graphs in one plot.
Hello anton, there is no attachment. But if you can plot one curve, you can do several as well: t = 0:0.1:1; a1 = rand(...

quasi 12 anni fa | 0

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Error occurs while executing state space parameters using idss?
PARASSURAM, check the size of the matrices. It looks like your |D| matrix needs to be a 1-by-2 (rather than a 1-by-1). |K| sh...

quasi 12 anni fa | 1

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Getting a mean of only the numbers
Evelyn, use mean(data(~isnan(data)))

quasi 12 anni fa | 1

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Bug in R2014b? Markersize specifier resets marker type
Hello Wouter, the default <http://www.mathworks.com/help/matlab/ref/plot.html#inputarg_LineSpec marker size> is 6. So you probab...

quasi 12 anni fa | 0

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Risposto
Why isn't this plot looking correct?
Tyler, I am not sure what you are looking for. However, it seems like you did get what the exercise is asking for. Note, that th...

quasi 12 anni fa | 1

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Why is laplace not working?
Hilary, you probaby do not have the Symbolic Math Toolbox installed and/or licensed. At the MATLAB command prompt type which...

quasi 12 anni fa | 0

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How to define which variable is x and which variable is y axis?
John, simply use plot(b,c) The first argument is the |x| the second the |y| axis. Or, if you want to show both solution b...

quasi 12 anni fa | 1

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i am getting an error as Attempt to call constructor image with incorrect letter case.
Vetri, see this <http://www.mathworks.com/matlabcentral/answers/38498#answer_47982 answer> reference.

quasi 12 anni fa | 0

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How to print the second largest of a group of the numbers
Rodrigo, you could use a = [1 2 3 4 5 6 7 8 9 10]; b = max(setxor(a,max(a)));

quasi 12 anni fa | 1

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Matlab questions from newbies.
Eugene, MATLAB does not know about units and only takes care of the numerics. In other words, you need to make sure that the uni...

quasi 12 anni fa | 2

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How can I use greek symbols in plot labels?
Merve, you mean something like lambda = 20:5:40; y = 1./lambda; plot(lambda,y) xlabel('{\lambda}') set(gca,... ...

quasi 12 anni fa | 7

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Risposto
i want to use fonction(unique) to get un string ,but it awlays shows Error using cell/unique?Can anyone tell me what I am doing wrong here? thank you
pengcheng, use P = [pa(1),pa(2),pa(3),pa(4),pa(5)]; H = unique(P); instead.

quasi 12 anni fa | 0

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Risposto
How can I write this function so I can use it on multiple values?
Use bmi = (w*4.88)./h.^2 instead. Note the dot in front of the forward slash.

quasi 12 anni fa | 0

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Risposto
Latex Interpreter - mean bar with subscripts
Use ylabel('$\bar{C}_{p_{A_L}}$','FontAngle','italic','Interpreter','Latex')

quasi 12 anni fa | 2

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getting wrong values when coding
Guan-Yu, use instead scale = 0; quiver(x,y,u,v,scale) This turns off the automatic scaling of the arrows.

quasi 12 anni fa | 0

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approximating pi with taylor series expansion to the 10,000th term
charlotte, you are almost there: l = 1; for ii = 1:10000 l = l + ((-1)^ii)/(2*ii + 1); end x = 4*l; * If the n...

quasi 12 anni fa | 0

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Risposto
Is it possible to check which part of the script is taking longer time for execuation ?
Prathamesh, you are looking for the <http://www.mathworks.com/help/matlab/matlab_prog/profiling-for-improving-performance.html P...

quasi 12 anni fa | 2

Risposto
please explain this error
dav, I believe what you are trying to do is the following max([-3/2, 7, 1.4]) The values you want to find the maximum of ...

quasi 12 anni fa | 3

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