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Feeds
How to loop through cell array and apply script to each double?
You can use the cellfun function, where you use your script as the function. Example: a = {1:3, 200:205, 10:12}; new_a = cell...
environ 10 heures il y a | 0
A résolu
Find MPG of Lightest Cars
The file cars.mat contains a table named cars with variables Model, MPG, Horsepower, Weight, and Acceleration for several classi...
1 jour il y a
A résolu
Rescale Scores
Each column (except last) of matrix X contains students' scores in a course assignment or a test. The last column has a weighted...
4 jours il y a
A résolu
Crop an Image
A grayscale image is represented as a matrix in MATLAB. Each matrix element represents a pixel in the image. An element value re...
4 jours il y a
A résolu
Verify Law of Large Numbers
If a large number of fair N-sided dice are rolled, the average of the simulated rolls is likely to be close to the mean of 1,2,....
4 jours il y a
Unable to obtain double precision from symbolic value
You need the vpa function x = 2; a = sym(1/3); f = a*sin(2*pi*x) fVpa = vpa(f,10)
9 jours il y a | 1
| A accepté
Help with contour plot
You actually do have 5 lines but they are on top of each other thats why you do not see them. So your Z matrix for k1(1) and k1(...
10 jours il y a | 0
| A accepté
count number of elements for each slice of a vector
Here is one simple way: A = [2 1; 3 1; 4 2; 5 2; 6 2; 7 1; 8 1; 7 1; 5 2; 6 2]; ...
16 jours il y a | 0
| A accepté
First cell in a string array is empty, how to replace this?
The issue is you are not initiating and filling the mode1_status matrix properly. Your initial mode1_status matrix is a 1x1 matr...
17 jours il y a | 0
| A accepté
Which MATLAB license should I buy as a reseacher working in an NGO?
The best way to know is by contacting the sales directly, say it is a nonprofit NGO and for research. They might offer you eithe...
17 jours il y a | 2
Matlab optimization - variables to satisfy L1 norm
You create a nonlinear constraint functio and give it as an argument to the fmincon. [x,fval,exitflag,output]=fmincon(@(x)costF...
17 jours il y a | 1
A résolu
Calculate area of sector
A=function(r,seta) r is radius of sector, seta is angle of sector, and A is its area. Area of sector A is defined as 0.5*(r^2...
17 jours il y a
A résolu
Pizza!
Given a circular pizza with radius z and thickness a, return the pizza's volume. [ z is first input argument.] Non-scored bonus...
17 jours il y a
How to draw a Nyquist plot while avoiding the pole at the origin
I dont think the nyquist plots looks exactly like you draw by hand. You can set the axis limits to make the nyquist plot visib...
18 jours il y a | 0
How to draw a graph like the image attached below in MATLAB
You can also use countourf function; % random data from countour example x = linspace(-2*pi,2*pi); y = linspace(0,4*pi); [X,...
19 jours il y a | 0
Insufficient number of input parameters.
The calculate_gain_sfunc requires an input. You called it without any inputs. calculate_gain_sfunc % WRONG way to run the func...
19 jours il y a | 0
Hi All. Just wondering why answer to (i) is not 4.9e+4. an why answer to (iii) is not (9x)/2 or 4.5 x. Many thanks. Brian
Your value in (i) for f(1.2) is 49020.80113638172, so when you round to 1 decimal, it becomes 49020.8 which in engineering notat...
22 jours il y a | 1
How can I express all the variables Vcm1, Vcm2, Vcm3, Vcm4 in num2str without getting an error?
Dont know what exactly you are trying to do but here is an example using your variable names: dim = [0.2 .5 0.25 0.1];% normali...
22 jours il y a | 0
| A accepté
Intersection condition between two ellipses
Here is one way where accuracy will depend on selecting the threshold correctly. You simply solve the equation for y given an x ...
23 jours il y a | 0
Index exceeds the number of array elements. Index must not exceed 1
You are overwriting the C_Y array in your for loop. You initialize C_Y as a 5x5 zeros matrix and in the first iteration of your ...
23 jours il y a | 0
| A accepté
help with nested loop and plot
Here is one simple dirty way: n= 101; x = linspace(-100, 100, n); y = linspace(-100, 100, n); [X, Y] = meshgrid(x, y); Z = ...
25 jours il y a | 0
Accessing cell array entries using arrays
I think you want to use B columns as indeces to extract info from A, so: A=cell(2,2); B=[1 2 2 1 1; 2 1 2 1 2] A{1,1}=[4...
26 jours il y a | 0
what is the meaning of error "Index exceeds the number of array elements. Index must not exceed 8."
it means the size of y variable is 8 abd you are trying to get 9th 10th 11th index of the y vector. This is because your initial...
26 jours il y a | 0
Someone help me to plot Ids vs Vds for HEMT AlGaN/GaN
I think what you are trying to do is vary Vds and see what Ids becomes. So here is a simple some modification for it using for l...
28 jours il y a | 0
Generating triangle wave form
You can use the general equation for the triangle wave and implement it using simple simulink blocks t = 0:0.01:10; % time f =...
28 jours il y a | 0
| A accepté
How to use fminunc for a 2D function composed of two functions?
You dont seem to have a double function. So here is a code to solve your problem. You have local minimas so fmincon and brute f...
29 jours il y a | 0
| A accepté
the matrix addition should come 0 but it is not happening
Given the difference is 1e-12, it is probably floating point issue. Floating points list significant bit is generally unreliable...
29 jours il y a | 1
How can I make such that every method call to a class is routed through a wrapper
Any reason why you are not using wrapper_func with an input argument that determines which method it should call? With this you ...
29 jours il y a | 0
| A accepté
Can't stabilize system with PID
One thing you can do is use symbolic PID gains, plug them in your closed loop transfer function, and find the values via pole pl...
environ un mois il y a | 0
| A accepté
How to set upper x-axis ticks values and locations?
You were changing the label name at 30 60, instead of their actual values, so here is one dirty way but I recommend you follow t...
environ un mois il y a | 0
| A accepté
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