Answered
how to plot multiple waves on one surface
Here is a mock up solution. Code is: below. I've used part of your data, but I've made up some similar data (using a sinc fun...

7 Monate ago | 0

Answered
LaTex with 2 strings separated by a num2str
Use an escape (backslash) for the % errordisplay=[' $\varepsilon_{RTP}=$ ',num2str(rtep),'\%'];

7 Monate ago | 1

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Solving second order implicit differential equation
Just convert the 2nd order ODE into Cauchy form. You will of course need 2 initial condtions. Define x, now you original equat...

7 Monate ago | 0

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Answered
Stimulating Chemical Reaction with Differential Equation on Simulink
Homework? Anyway, to get you started, take a look at my Simulink layout: I've painted the integrators yellow, and I have expli...

7 Monate ago | 0

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how do i rotate an airfoil points? and plot.
Does this look better? Some (small) changes to your code. I swapped your rotation direction to better follow your example pl...

7 Monate ago | 2

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Answered
plotting an exponential will a matrix over time
OK, your question is a bit vauge, and there are missing bits, i.e. the start point for y. I'm assuming you are trying to solve...

7 Monate ago | 0

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finding lengths of an ellipse
If you need a little more help, then it pays to plot the ellipse and look at the arc lengths. t = linspace(0,2*pi)'; x = @(t)...

7 Monate ago | 0

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Answered
I want to know how i can apply k-means clustering on my scatter plotted dataset.
You probably want to use kmeans. Since you didn't give us any data to workj with, nor did you give us any idea of the number o...

7 Monate ago | 1

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Answered
Fitting model to titration data
For one thing, you don't assign an answer to function sseval. That's not going to help things. Here's my solution: I've re...

7 Monate ago | 1

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Position of two subplots with bar charts
One option is to obtain the position of the plot with the long legend, and then re-size the other to the same width. But it's pr...

7 Monate ago | 0

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Histogram x axis tick labels – string
Try >> get(gca,'XTicklabel') and hack that.

7 Monate ago | 1

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Answered
Histogram x axis tick labels – string
Released 2016b. What's your version? >> which xticklabels C:\Program Files\MATLAB\R2018b\toolbox\matlab\graph3d\xticklabels.m...

7 Monate ago | 0

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Histogram x axis tick labels – string
Hack the final xticklabel x = randn(1e5,1); x= x-min(x)+1; histogram(log(x)) xlim([0,3]) xt = xticklabels; xt{end} = 'oth...

7 Monate ago | 1

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solving a very complicated equation implicitly
A quick answer is you probably need to dot-divide (./) the term with the (vector) rpf. 2nd point. Because I used a root finder...

7 Monate ago | 0

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Y-axis labels overlaps with figure when using a reversed x-axis
Ah, missed that. Nasty bug/feature. text(10,10.5e9,'x10^9') % place manually ?

7 Monate ago | 0

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Y-axis labels overlaps with figure when using a reversed x-axis
Yes, it seems to only happen when there is an exponent in the y-axis. And even then the exponent must have double figures. Also ...

7 Monate ago | 0

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solving a very complicated equation implicitly
OK, try this: My approach was to embed an integral inside a root solver. I basically used your code and coefficients, but chan...

8 Monate ago | 1

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How can I find the coefficients of a second order ODE using data points?
You will also need to have collected x(t) at each sample point.

8 Monate ago | 0

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to find the root of quantum transcendental equation
Well you have given us quite a puzzler; little background info and no context. I'm assuming you are looking for the value Ee s...

8 Monate ago | 0

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How to get a kernel density plot
You also can use ksdensity from the Stats toolbox. But you have supplied us with a matrix with 25 columns! Which column were you...

8 Monate ago | 0

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Answered
Coefficents not reflecting the curve obtained using fit function
I suspect that the problem is that you have normalised the data, and then forgot that when you looked at the parameter values. ...

8 Monate ago | 0

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Answered
geoaxes, geoscatter does not work
Correct, you'll need to upgrade to use this functionality. (I think the mapping toolbox does replicate this to some degree tho...

8 Monate ago | 0

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Error using load Out of memory. Type HELP MEMORY for your options.
Did you do as suggested and actually check your memory? >> memory Maximum possible array: 2745 MB (2.878e+09 bytes) *...

8 Monate ago | 0

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Answered
USing BVP solver to solve 2-D Laplace’s equation?
If you mean bvp4c, then no it is not suitable since it solves boundary value ODEs in 1D, not PDEs in 2D. To solve Laplace's eqn ...

8 Monate ago | 0

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please help me to fix error and rectify it to a correct programme
In general, it's better to use column vectors by default. That way you don't make mistakes like above when concatenating. gamm...

8 Monate ago | 0

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geoaxes, geoscatter does not work
The function geoaxes was introduced in 2018b. What is your version? Type >> ver.

8 Monate ago | 0

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I would like to plot periodogram for my voice file how to do that?
You read in an audio file and set it to the variable y with sampling frequency fs, and then you immediately clobber it with a no...

8 Monate ago | 0

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Nonlinear Optimization problem in Matlab
Are you confusing x0, the start guess with x(0), which does not exist. In your constraint, you write x(0). If that is really wha...

8 Monate ago | 0

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Answered
Use the Matlab function EXPM()
I'll get you going on part (b): syms t positive A = sym([0,-5;1,-2]); Phi = expm(A*t)

8 Monate ago | 0

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geoaxes, geoscatter does not work
Try the which function. This will tell you if the function exists on your path. >> which geoshow C:\Program Files\MATLAB\R201...

8 Monate ago | 0

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