Respondida
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); ...

más de 11 años hace | 1

| aceptada

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

más de 11 años hace | 0

| aceptada

Respondida
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...

más de 11 años hace | 0

Respondida
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...

más de 11 años hace | 0

| aceptada

Respondida
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 ...

más de 11 años hace | 0

| aceptada

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

más de 11 años hace | 0

Respondida
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 ...

más de 11 años hace | 0

Respondida
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...

más de 11 años hace | 0

| aceptada

Respondida
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,...

más de 11 años hace | 0

Respondida
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...

más de 11 años hace | 0

| aceptada

Respondida
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: ... ...

más de 11 años hace | 0

| aceptada

Respondida
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 ...

más de 11 años hace | 1

Respondida
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(...

más de 11 años hace | 0

Respondida
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...

más de 11 años hace | 1

| aceptada

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

más de 11 años hace | 1

| aceptada

Respondida
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...

más de 11 años hace | 0

| aceptada

Respondida
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...

más de 11 años hace | 1

Respondida
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...

más de 11 años hace | 0

Respondida
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...

más de 11 años hace | 1

Respondida
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.

más de 11 años hace | 0

Respondida
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)));

más de 11 años hace | 1

Respondida
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...

más de 11 años hace | 2

| aceptada

Respondida
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,... ...

más de 11 años hace | 7

| aceptada

Respondida
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.

más de 11 años hace | 0

| aceptada

Respondida
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.

más de 11 años hace | 0

| aceptada

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

más de 11 años hace | 2

| aceptada

Respondida
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.

más de 11 años hace | 0

Respondida
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...

más de 11 años hace | 0

| aceptada

Respondida
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...

más de 11 años hace | 2

Respondida
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 ...

más de 11 años hace | 3

| aceptada