Answered

How to change the content of file?

filename = 'Document2.txt'; while true Val = load(filename) + 10; if Val > 250; break; end fid = fopen(fi...

How to change the content of file?

filename = 'Document2.txt'; while true Val = load(filename) + 10; if Val > 250; break; end fid = fopen(fi...

3 Tage ago | 0

Answered

How do I save only the final state of ode solver?

use options for plotfcn or outputfcn and have it skip updating the plot unless the iteration number mod n is 0.

How do I save only the final state of ode solver?

use options for plotfcn or outputfcn and have it skip updating the plot unless the iteration number mod n is 0.

3 Tage ago | 1

| accepted

Answered

Check for missing argument or incorrect argument data type in call to function 'scale' .what is the problem and how to correct it? Based on machine learning on ramp course.

https://www.mathworks.com/help/matlab/ref/polyshape.scale.html scale() is not defined for numeric arrays, only for polyshape ...

Check for missing argument or incorrect argument data type in call to function 'scale' .what is the problem and how to correct it? Based on machine learning on ramp course.

https://www.mathworks.com/help/matlab/ref/polyshape.scale.html scale() is not defined for numeric arrays, only for polyshape ...

3 Tage ago | 0

Answered

Matlab system command doesn't work properly on linux platform

https://www.gnu.org/software/bash/manual/html_node/Bash-Startup-Files.html You have a BASH_ENV or equivalent for your shell, ...

Matlab system command doesn't work properly on linux platform

https://www.gnu.org/software/bash/manual/html_node/Bash-Startup-Files.html You have a BASH_ENV or equivalent for your shell, ...

3 Tage ago | 0

Answered

How to display stacking circle

stack = char(' ' + zeros(max(array),length(array))); stack(ndgrid(max(array):-1:1) <= array) = 'o';

How to display stacking circle

stack = char(' ' + zeros(max(array),length(array))); stack(ndgrid(max(array):-1:1) <= array) = 'o';

4 Tage ago | 0

Answered

How do I detect a "tab" character in a line of text read by fgetl?

S = sprintf('abc\tdef'); %text with a tab in it S == 9 %fast, simple, and tab character unlikely to...

How do I detect a "tab" character in a line of text read by fgetl?

S = sprintf('abc\tdef'); %text with a tab in it S == 9 %fast, simple, and tab character unlikely to...

4 Tage ago | 1

Answered

Merge repetitive matrices to Final one

%create test data h1 = complex(rand(3,3), rand(3,3)); h2 = complex(rand(3,3), rand(3,3)); %do the work NR = 10; %number ...

Merge repetitive matrices to Final one

%create test data h1 = complex(rand(3,3), rand(3,3)); h2 = complex(rand(3,3), rand(3,3)); %do the work NR = 10; %number ...

4 Tage ago | 0

| accepted

Answered

Using events function to handle discontinuities in system of differential equations

check = double(floor(y(1)*(4*pi*(10*10^-6)^2)) < 1); % checks if N*A is greater than 1 Avoid coding events as binary. Instead c...

Using events function to handle discontinuities in system of differential equations

check = double(floor(y(1)*(4*pi*(10*10^-6)^2)) < 1); % checks if N*A is greater than 1 Avoid coding events as binary. Instead c...

4 Tage ago | 1

| accepted

Answered

Axis exponent not displaying when changing TickLabels

Unfortunately that is automatic, the exponent is shut off when manual tick labels are used. You would need to text() the exponen...

Axis exponent not displaying when changing TickLabels

Unfortunately that is automatic, the exponent is shut off when manual tick labels are used. You would need to text() the exponen...

4 Tage ago | 0

| accepted

Answered

Error using syms and subs

Replacement code. It seems likely to me that the other files would also have to be editted . The key changes: everywhere the...

Error using syms and subs

Replacement code. It seems likely to me that the other files would also have to be editted . The key changes: everywhere the...

4 Tage ago | 0

| accepted

Answered

How to check if a figure has z-axis data?

My tests show that all axes of type numeric and datetime have ZLim that can be queried, so the presense of ZLim cannot be used t...

How to check if a figure has z-axis data?

My tests show that all axes of type numeric and datetime have ZLim that can be queried, so the presense of ZLim cannot be used t...

4 Tage ago | 1

| accepted

Answered

integral of function definite in piece with multiple variable

P = @(w) integral( @(t) p(t) .* exp(complex(0,-w*t))/sqrt(2*pi),-inf,+inf);

integral of function definite in piece with multiple variable

P = @(w) integral( @(t) p(t) .* exp(complex(0,-w*t))/sqrt(2*pi),-inf,+inf);

5 Tage ago | 0

Answered

how to make zoom in and out

text objects have different possible FontUnits. All of the possibilities except Normalized relate to physical display size, and ...

how to make zoom in and out

text objects have different possible FontUnits. All of the possibilities except Normalized relate to physical display size, and ...

5 Tage ago | 0

| accepted

Answered

Asking for filename of excel sheet then using xlsread to display

You need to define the behaviour you want when the user does not enter a valid file name, as in this case. When you do not prov...

Asking for filename of excel sheet then using xlsread to display

You need to define the behaviour you want when the user does not enter a valid file name, as in this case. When you do not prov...

5 Tage ago | 0

| accepted

Answered

about strings properties issstrprop

Remove the semi-colon. isstrprop('saraaba123', 'alpha')

about strings properties issstrprop

Remove the semi-colon. isstrprop('saraaba123', 'alpha')

5 Tage ago | 0

Answered

'Matrix dimensions must agree' error.

p = 1.225; p2 = [1.225; 0.7364; 0.4135]; num_p2 = length(p2); g = 9.81; s = 845; cd0 = 0.0163; ar = 7.53; e = 0.74; ...

'Matrix dimensions must agree' error.

p = 1.225; p2 = [1.225; 0.7364; 0.4135]; num_p2 = length(p2); g = 9.81; s = 845; cd0 = 0.0163; ar = 7.53; e = 0.74; ...

5 Tage ago | 0

| accepted

Answered

Licensing Question (Number of devices)

Each student license can be installed and activated on exactly one host. If you have multiple student licenses, they can be acti...

Licensing Question (Number of devices)

Each student license can be installed and activated on exactly one host. If you have multiple student licenses, they can be acti...

5 Tage ago | 0

Answered

How can I calculate the first derivative of a vector with respect to a matrix?

syms a [1 2] syms B [2 4] syms C [4 4] x = a*B*C; derivs = arrayfun(@(X) reshape(gradient(X, B(:)),size(B)), x, 'uniform',...

How can I calculate the first derivative of a vector with respect to a matrix?

syms a [1 2] syms B [2 4] syms C [4 4] x = a*B*C; derivs = arrayfun(@(X) reshape(gradient(X, B(:)),size(B)), x, 'uniform',...

5 Tage ago | 0

| accepted

Answered

pcolor function axes switch

Create a hgtransform group. When you pcolor(), set its Parent to be the hgtransform group. Use makehgtform to build a transform ...

pcolor function axes switch

Create a hgtransform group. When you pcolor(), set its Parent to be the hgtransform group. Use makehgtform to build a transform ...

5 Tage ago | 0

Answered

Serial communication with DSP F28377s

is the serial communication between PC and F28377s requires RS 232 cable or not. No. The F28377s has a USB port, so you would u...

Serial communication with DSP F28377s

is the serial communication between PC and F28377s requires RS 232 cable or not. No. The F28377s has a USB port, so you would u...

5 Tage ago | 1

Answered

Does anyone know why this script isnt working?

from 1 to N from() is a Java Date method that does not expect character vectors '1', 'to', 'and 'N' as inputs. ...

Does anyone know why this script isnt working?

from 1 to N from() is a Java Date method that does not expect character vectors '1', 'to', 'and 'N' as inputs. ...

5 Tage ago | 0

Answered

3D matrix and 3d plot in matlab

f1.a0 = -3; %to have **some** value R = 0.003/2; %pipe dia. yy=linspace(-R,R,50); xx=yy; d = linspace(0,1,30); %di...

3D matrix and 3d plot in matlab

f1.a0 = -3; %to have **some** value R = 0.003/2; %pipe dia. yy=linspace(-R,R,50); xx=yy; d = linspace(0,1,30); %di...

5 Tage ago | 0

Answered

Normalizing 3D coordinates: start in 0,0

A(:, 2:end) = A(:, 2:end) - A(1,1:end) ; This version of the code requires R2016b or later

Normalizing 3D coordinates: start in 0,0

A(:, 2:end) = A(:, 2:end) - A(1,1:end) ; This version of the code requires R2016b or later

5 Tage ago | 0

Answered

make a point varies

When A and B are the lower bound and upper bound respectively, then A + rand() * (B-A) will be a random point between the two....

make a point varies

When A and B are the lower bound and upper bound respectively, then A + rand() * (B-A) will be a random point between the two....

5 Tage ago | 0

Answered

How do I bring the axes above the plotted lines, instead of the data obscuring the axes

set(gca, 'layer', 'top')

How do I bring the axes above the plotted lines, instead of the data obscuring the axes

set(gca, 'layer', 'top')

5 Tage ago | 0

Answered

Logical Indexing instead of for (if) loop

In the original code, you are working with one element at a time, which is a scalar, which is a 1 x 1 matrix, which is square. W...

Logical Indexing instead of for (if) loop

In the original code, you are working with one element at a time, which is a scalar, which is a 1 x 1 matrix, which is square. W...

5 Tage ago | 0

| accepted

Answered

Eig() matlab coder output

eigenvectors are not unique; if V is an eigenvector of the matrix, then c*V is also an eigenvector of the matrix, where c is a n...

Eig() matlab coder output

eigenvectors are not unique; if V is an eigenvector of the matrix, then c*V is also an eigenvector of the matrix, where c is a n...

6 Tage ago | 0

Answered

Sortrows function and real-time systems

sortrows() is based on quicksort. quicksort() does not require that the comparison operation be literally x(idx1) < x(idx2) : q...

Sortrows function and real-time systems

sortrows() is based on quicksort. quicksort() does not require that the comparison operation be literally x(idx1) < x(idx2) : q...

6 Tage ago | 1

Answered

Converting image to bits and vice versa

bits = reshape((dec2bin(typecast(YourImage, 'uint8'), 8) - '0').', 1, []); orig_class = class(YourImage); orig_size = size(Y...

Converting image to bits and vice versa

bits = reshape((dec2bin(typecast(YourImage, 'uint8'), 8) - '0').', 1, []); orig_class = class(YourImage); orig_size = size(Y...

6 Tage ago | 0

| accepted