Answered

Undefined variable "dsp" or class

You need to license and install DSP System Toolbox; https://www.mathworks.com/products/dsp-system.html

Undefined variable "dsp" or class

You need to license and install DSP System Toolbox; https://www.mathworks.com/products/dsp-system.html

16 minutes ago | 0

Answered

Is it possible to install and run MATLAB R2020b on NVIDIA Xavier platform?

You are right, at present MATLAB is only supported on Intel platforms. Next month (December 2020), Mathworks intends to release...

Is it possible to install and run MATLAB R2020b on NVIDIA Xavier platform?

You are right, at present MATLAB is only supported on Intel platforms. Next month (December 2020), Mathworks intends to release...

18 minutes ago | 0

Answered

Please compile the function file function a=test(b,c,d), so that when the input parameters are 1~3, the output parameter is the mean value of the input parameters (a=b or a=(b+c)/2 or a =(b+c+d)/3). Please directly use the source code of the functio

Your output variable is named mean. You need to assign to that variable.

Please compile the function file function a=test(b,c,d), so that when the input parameters are 1~3, the output parameter is the mean value of the input parameters (a=b or a=(b+c)/2 or a =(b+c+d)/3). Please directly use the source code of the functio

Your output variable is named mean. You need to assign to that variable.

4 hours ago | 0

Answered

Unable to perform assignment because the left and right sides have a different number of elements.

When you enter 7 then the code expects to read 7 lines with 8 values per line (though as the prompts hint you can put as many va...

Unable to perform assignment because the left and right sides have a different number of elements.

When you enter 7 then the code expects to read 7 lines with 8 values per line (though as the prompts hint you can put as many va...

5 hours ago | 0

Answered

Creating a symbolic array

a = sym([]); or better yet a = zeros(5,5,'sym')

Creating a symbolic array

a = sym([]); or better yet a = zeros(5,5,'sym')

5 hours ago | 0

| accepted

Answered

Need help in viewing a 2D image in 3D space.

volumeviewer perhaps. But I suspect idx = find(YourMatrix) ; [r, c, p] = ind2sub(size(YourMatrix), idx); scatter3(c, ...

Need help in viewing a 2D image in 3D space.

volumeviewer perhaps. But I suspect idx = find(YourMatrix) ; [r, c, p] = ind2sub(size(YourMatrix), idx); scatter3(c, ...

10 hours ago | 0

Answered

How to write if statement for logical value

any(Result{1,1}, 1)

How to write if statement for logical value

any(Result{1,1}, 1)

10 hours ago | 0

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Answered

GA does not solve problems with integer and equality constraints.

you can still use ga but you have to tell ga that you have no integer constraints. Then you have to provide a population functio...

GA does not solve problems with integer and equality constraints.

you can still use ga but you have to tell ga that you have no integer constraints. Then you have to provide a population functio...

10 hours ago | 1

Answered

Error using sym/subsindex () while using the symsum function

You can never use an unresolved symbolic variable as a subscript. You must always use definite numeric or logical values for ...

Error using sym/subsindex () while using the symsum function

You can never use an unresolved symbolic variable as a subscript. You must always use definite numeric or logical values for ...

10 hours ago | 0

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Answered

Error in Cumtrapz?

Remember after one integration you get a formula with a constant of integration, and when you integrate that, you get the double...

Error in Cumtrapz?

Remember after one integration you get a formula with a constant of integration, and when you integrate that, you get the double...

23 hours ago | 0

Answered

How to remove duplicates from a matrix without using unique?

[~, a]=findgroups(d);

How to remove duplicates from a matrix without using unique?

[~, a]=findgroups(d);

1 day ago | 1

Answered

or() in categorical variable

ismember(financial_status, 1:2) At the moment I cannot think of any computer language that expresses a set membership test ...

or() in categorical variable

ismember(financial_status, 1:2) At the moment I cannot think of any computer language that expresses a set membership test ...

1 day ago | 0

Answered

can matlab calculate the area of irregular shape base on 2D-grid ?

No, in the general case the area of irregular shaped objects is not defined. See https://en.m.wikipedia.org/wiki/Koch_snowflake ...

can matlab calculate the area of irregular shape base on 2D-grid ?

No, in the general case the area of irregular shaped objects is not defined. See https://en.m.wikipedia.org/wiki/Koch_snowflake ...

2 days ago | 0

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Answered

Resizing the images to 100 x 100

TestData.Files(1:20) = cellfun(@(I) imresize(I,[100,100]), TestData.Files(1:20), 'uniform', 0); The code would have been sh...

Resizing the images to 100 x 100

TestData.Files(1:20) = cellfun(@(I) imresize(I,[100,100]), TestData.Files(1:20), 'uniform', 0); The code would have been sh...

2 days ago | 0

Answered

GA Toolbox maximization fucntion

To maximize a function, minimize the negative of the function @(x) -f(x)

GA Toolbox maximization fucntion

To maximize a function, minimize the negative of the function @(x) -f(x)

3 days ago | 1

| accepted

Answered

можно ли сделать так, что бы сетка отображалась поверх 3D графиков?

fig = figure(); ax1 = axes('Parent', fig); [X, Y] = meshgrid(1:50, 1:60); Z = X.^2 + Y.^2 - cos(X.*Y); surf(ax1, X, Y, Z, ...

можно ли сделать так, что бы сетка отображалась поверх 3D графиков?

fig = figure(); ax1 = axes('Parent', fig); [X, Y] = meshgrid(1:50, 1:60); Z = X.^2 + Y.^2 - cos(X.*Y); surf(ax1, X, Y, Z, ...

3 days ago | 0

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Answered

how to compand the complex valued signal

https://www.mathworks.com/help/comm/ref/compand.html#fp1068641 Look in the Algorithms section, which gives the formulas. Thos...

how to compand the complex valued signal

https://www.mathworks.com/help/comm/ref/compand.html#fp1068641 Look in the Algorithms section, which gives the formulas. Thos...

4 days ago | 0

Answered

Plot of an equation of three unknown variables

http://www.mathworks.com/help/matlab/ref/slice.html http://www.mathworks.com/help/matlab/ref/isosurface.html For a full plot o...

Plot of an equation of three unknown variables

http://www.mathworks.com/help/matlab/ref/slice.html http://www.mathworks.com/help/matlab/ref/isosurface.html For a full plot o...

4 days ago | 0

Answered

what does this line do

The code goes through all of the F cell entries, and finds the number of columns in each, recording the number of columns in num...

what does this line do

The code goes through all of the F cell entries, and finds the number of columns in each, recording the number of columns in num...

4 days ago | 0

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Answered

Coding an equation (with summation within equation) with nested for Loops

You are probably summing T_xt(:,:,:) over the third dimension to get T(x,t) . However, when you do that, you would be adding T_...

Coding an equation (with summation within equation) with nested for Loops

You are probably summing T_xt(:,:,:) over the third dimension to get T(x,t) . However, when you do that, you would be adding T_...

4 days ago | 0

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Answered

Matlab solver for natural log equation

Q = @sym; %convert to rational syms x eqn = log(Q(0.5)) == (-Q(27109)/x)-Q(0.95)*log(x)+Q(25.18) S = solve(eqn,x) vpa(S) ...

Matlab solver for natural log equation

Q = @sym; %convert to rational syms x eqn = log(Q(0.5)) == (-Q(27109)/x)-Q(0.95)*log(x)+Q(25.18) S = solve(eqn,x) vpa(S) ...

4 days ago | 0

Answered

How to use parfor instead of for in this function

That is not possible. The output when i=2 depends on y(:,2) having been set properly, but y(:,) has not been assigned to until i...

How to use parfor instead of for in this function

That is not possible. The output when i=2 depends on y(:,2) having been set properly, but y(:,) has not been assigned to until i...

5 days ago | 0

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Answered

How to vectorize this for loop

Fea = Fin( sub2ind(size(Fin), SD(1:10,:), 20*ones(10, size(SD,2)))); However, your original code would have failed. Your SD is ...

How to vectorize this for loop

Fea = Fin( sub2ind(size(Fin), SD(1:10,:), 20*ones(10, size(SD,2)))); However, your original code would have failed. Your SD is ...

5 days ago | 0

Answered

Insufficient number of outputs

a=imread('emptybottle.png'); b=rgb2gray(a); f1 = imcrop(b,[400 0 200 130]); imhist(f1); f2=im2bw(f1,0.78); f3=~f2; im...

Insufficient number of outputs

a=imread('emptybottle.png'); b=rgb2gray(a); f1 = imcrop(b,[400 0 200 130]); imhist(f1); f2=im2bw(f1,0.78); f3=~f2; im...

5 days ago | 0

Answered

how to find kshortest path or use Dijkstra algorithm for 12 plot points.

ps=[37 316]; pg=[382 471]; b1=[71 319]; b2=[105 379]; b3=[74 281]; b4=[340 339]; b5=[338 280]; b6=[48 125]; b7=[181 176...

how to find kshortest path or use Dijkstra algorithm for 12 plot points.

ps=[37 316]; pg=[382 471]; b1=[71 319]; b2=[105 379]; b3=[74 281]; b4=[340 339]; b5=[338 280]; b6=[48 125]; b7=[181 176...

5 days ago | 0

Answered

not enough input arguments

>> classifyKNN_D_Multi You are trying to run a function that requires either 4 or 5 inputs, with no inputs at all. case ...

not enough input arguments

>> classifyKNN_D_Multi You are trying to run a function that requires either 4 or 5 inputs, with no inputs at all. case ...

6 days ago | 0

Answered

using fit function,Error using fittype

D(x) = (20*gc*exp(gd*x))/(gc + gd - gu) - (20*gc*exp(-x*(gc - gu)))/(gc + gd - gu) That is a symbolic function involving thr...

using fit function,Error using fittype

D(x) = (20*gc*exp(gd*x))/(gc + gd - gu) - (20*gc*exp(-x*(gc - gu)))/(gc + gd - gu) That is a symbolic function involving thr...

6 days ago | 0

| accepted

Answered

How to find the difference between two plots while the dimension of the matrices are different?

subplot(1,2,1) plot(x1, y1, 'b', x2, y2, 'r') subplot(1,2,2) minx = max( min(x1), min(x2) ); maxx = min( max(x1), max(x2...

How to find the difference between two plots while the dimension of the matrices are different?

subplot(1,2,1) plot(x1, y1, 'b', x2, y2, 'r') subplot(1,2,2) minx = max( min(x1), min(x2) ); maxx = min( max(x1), max(x2...

6 days ago | 0

| accepted

Answered

Professor Provided this code but I cant get it to run

% assign numerical values to global variables U, Ta , % to be able to use such values in all sub - programs % that include the...

Professor Provided this code but I cant get it to run

% assign numerical values to global variables U, Ta , % to be able to use such values in all sub - programs % that include the...

6 days ago | 0

| accepted