Answered

How to fix the compilation problem?

This is a security concern. See https://www.mathworks.com/matlabcentral/answers/813140-confusing-warning-during-compilation-warn...

How to fix the compilation problem?

This is a security concern. See https://www.mathworks.com/matlabcentral/answers/813140-confusing-warning-during-compilation-warn...

4 dagar ago | 0

| accepted

Answered

Hi i have a set of data which is temperatures in degree celsius ranging from 10 deg to 250 deg but i need to plot only the temperatures ranging from 20 and 70 degrees .

xlim([20 70]) Or possibly ylim() instead of xlim() Or maybe you need clim()

Hi i have a set of data which is temperatures in degree celsius ranging from 10 deg to 250 deg but i need to plot only the temperatures ranging from 20 and 70 degrees .

xlim([20 70]) Or possibly ylim() instead of xlim() Or maybe you need clim()

5 dagar ago | 0

Answered

How to input exponentials in transfer functions using Simulink?

If this must be implemented as transfer functions then you will need to copy the transfer function block several times, set the ...

How to input exponentials in transfer functions using Simulink?

If this must be implemented as transfer functions then you will need to copy the transfer function block several times, set the ...

5 dagar ago | 0

Answered

Save multiple variables into single -Ascii File with different column of [x:y:z]

out = [SSS, Lat, Lon]; save('20150131.asc', 'out', '-ascii')

Save multiple variables into single -Ascii File with different column of [x:y:z]

out = [SSS, Lat, Lon]; save('20150131.asc', 'out', '-ascii')

5 dagar ago | 0

Answered

recalculation with different rsult respect to previous one

This can happen for a couple of different reasons: if the calculations involve random numbers. The random number use might not ...

recalculation with different rsult respect to previous one

This can happen for a couple of different reasons: if the calculations involve random numbers. The random number use might not ...

6 dagar ago | 0

Answered

what is the unit of amplitude in matlab simulink?

The unit of magnitude for sine wave in Simulink is the "Finagle" . https://wiki.c2.com/?FinaglesVariableConstant

what is the unit of amplitude in matlab simulink?

The unit of magnitude for sine wave in Simulink is the "Finagle" . https://wiki.c2.com/?FinaglesVariableConstant

6 dagar ago | 0

Answered

How do I fix the error of arrays having incompatible sizes?

Yes, you need to loop over KC values. Your ndt is a vector with values calculated in terms of KC. And that means that X(1:floo...

How do I fix the error of arrays having incompatible sizes?

Yes, you need to loop over KC values. Your ndt is a vector with values calculated in terms of KC. And that means that X(1:floo...

7 dagar ago | 1

Answered

Please help with fsolve, i keep getting this error

Your posted code has Q0 = [120;21;24;23]; which is fine. But your error message is from running some other code -- code that...

Please help with fsolve, i keep getting this error

Your posted code has Q0 = [120;21;24;23]; which is fine. But your error message is from running some other code -- code that...

7 dagar ago | 0

Answered

Error while creating fitness function

It looks to me as if you ran the function by pressing the green Run button. But possibly there is a place in SparrowSearchAlgori...

Error while creating fitness function

It looks to me as if you ran the function by pressing the green Run button. But possibly there is a place in SparrowSearchAlgori...

7 dagar ago | 0

Answered

pass input arguments of built in function as cell array or structure?

feval('plot', S{:}) feval does not support passing in any kind of structured input . Most functions do not support providing s...

pass input arguments of built in function as cell array or structure?

feval('plot', S{:}) feval does not support passing in any kind of structured input . Most functions do not support providing s...

7 dagar ago | 0

| accepted

Answered

Why am I getting an error here?

function I = simpson(f,a,b) depth 1 for i = 0:n depth 2 if i==0 || i==n depth 3 elseif mod(i,2)~=0 depth 3 elseif mod(i,...

Why am I getting an error here?

function I = simpson(f,a,b) depth 1 for i = 0:n depth 2 if i==0 || i==n depth 3 elseif mod(i,2)~=0 depth 3 elseif mod(i,...

7 dagar ago | 0

Answered

How do I plot a prod function in MATLAB?

syms t N ht = 2 * symprod((t-5)/4, t, 1, N) T = 1:10; y = double(subs(ht, N, T)) plot(T, y)

How do I plot a prod function in MATLAB?

syms t N ht = 2 * symprod((t-5)/4, t, 1, N) T = 1:10; y = double(subs(ht, N, T)) plot(T, y)

7 dagar ago | 0

Answered

i don't know code

x=[10 20 30 40 50 60 70]; That is a numeric vector. f(x)=1./(cosd(x)+2*sind(x)).^2; The right-hand side calculates a vector o...

i don't know code

x=[10 20 30 40 50 60 70]; That is a numeric vector. f(x)=1./(cosd(x)+2*sind(x)).^2; The right-hand side calculates a vector o...

7 dagar ago | 1

Answered

Coloring string, fprintf seems limited and cprintf is even a thing?

cprintf is a File Exchange contribution. You can install it using the Add-On Explorer. The return value from fprintf() is the n...

Coloring string, fprintf seems limited and cprintf is even a thing?

cprintf is a File Exchange contribution. You can install it using the Add-On Explorer. The return value from fprintf() is the n...

7 dagar ago | 0

Answered

Error: Array indices must be positive integers or logical values. implementing fletcher reeves method

fletcherreeves2([5;5],@(x) x(1)^2-x(1)*x(2)+4*x(2)^2+3*x(1)+2,@(x) [2*x(1)-x(2)+3,-x(1)+8*x(2)],10^-(6)) The third parameter th...

Error: Array indices must be positive integers or logical values. implementing fletcher reeves method

fletcherreeves2([5;5],@(x) x(1)^2-x(1)*x(2)+4*x(2)^2+3*x(1)+2,@(x) [2*x(1)-x(2)+3,-x(1)+8*x(2)],10^-(6)) The third parameter th...

8 dagar ago | 0

Answered

Can it be possible to use a for loop to precise the code

%%% The following lines need to be in squeezed so that it will save time (using for loop) Using a for loop is only faster th...

Can it be possible to use a for loop to precise the code

%%% The following lines need to be in squeezed so that it will save time (using for loop) Using a for loop is only faster th...

9 dagar ago | 0

| accepted

Answered

Can we use standard deviation of color image as a contrast value?

That particular kind of contrast is called RMS contrast; there are other contrast measures as well. https://en.wikipedia.org/wi...

Can we use standard deviation of color image as a contrast value?

That particular kind of contrast is called RMS contrast; there are other contrast measures as well. https://en.wikipedia.org/wi...

9 dagar ago | 0

| accepted

Answered

How can I calculate ln(x) in matlab code?

There seems to be some conception that "ln" is the "right" way to take natural logarithm, and that MATLAB is... deficient... bec...

How can I calculate ln(x) in matlab code?

There seems to be some conception that "ln" is the "right" way to take natural logarithm, and that MATLAB is... deficient... bec...

9 dagar ago | 0

Answered

houw can I get the number of terms?

First realize that the sum of 2 cube + 4 cube + 6 cube and so on, is 2 cube times (1 cube + 2 cube + 3 cube +...) Now look u...

houw can I get the number of terms?

First realize that the sum of 2 cube + 4 cube + 6 cube and so on, is 2 cube times (1 cube + 2 cube + 3 cube +...) Now look u...

9 dagar ago | 0

Answered

'Unable to concatenate the table variables 'Var1' and 'Var2', because their types are cell and double.' why this error is showing?

Your file contains a mix of text and numeric. What result are you expecting when you ask to convert it to a single array?

'Unable to concatenate the table variables 'Var1' and 'Var2', because their types are cell and double.' why this error is showing?

Your file contains a mix of text and numeric. What result are you expecting when you ask to convert it to a single array?

9 dagar ago | 1

Answered

why plot line style not change?

you are plotting only one point at a time. plot() only draws lines when there are at least two adjacent finite coordinates in a ...

why plot line style not change?

you are plotting only one point at a time. plot() only draws lines when there are at least two adjacent finite coordinates in a ...

10 dagar ago | 1

Answered

Arrazy size problem at line 24

P= (-m)*(Acc); p=fft(P); m is a scalar and Acc has 6 elements so P has 6 elements. fft with one parameter returns someth...

Arrazy size problem at line 24

P= (-m)*(Acc); p=fft(P); m is a scalar and Acc has 6 elements so P has 6 elements. fft with one parameter returns someth...

10 dagar ago | 0

Answered

Summing over indices using symsum

You cannot use a symbolic variable as an index. I think it is unlikely that it will ever be supported to use symbolic variable...

Summing over indices using symsum

You cannot use a symbolic variable as an index. I think it is unlikely that it will ever be supported to use symbolic variable...

10 dagar ago | 1

Answered

can we make 3D mash plot from eq y(x)

syms x theta g=9.81; v0=25; y0=1; fun = (-1)*(tand(theta)*x-(g/(2*v0^2*cosd(theta)^2)*x.^2)+y0); fsurf(fun, [0 300, 0 90]...

can we make 3D mash plot from eq y(x)

syms x theta g=9.81; v0=25; y0=1; fun = (-1)*(tand(theta)*x-(g/(2*v0^2*cosd(theta)^2)*x.^2)+y0); fsurf(fun, [0 300, 0 90]...

10 dagar ago | 0

Answered

Pre-built functions suddenly became undefined in app designer?

if timerfind() returns empty then it is [] that it returns rather than an empty array of class timer. And stop([]) does not work...

Pre-built functions suddenly became undefined in app designer?

if timerfind() returns empty then it is [] that it returns rather than an empty array of class timer. And stop([]) does not work...

11 dagar ago | 0

Answered

make function to plot countour and 3D

f=@(X,Y) 2+X-Y+2*X.^2+2*X.*Y+Y.^2; plot3dfunc(f,-2,0,0,3) function plot3dfunc(f,Xmin,Xmax,Ymin,Ymax) x=linspace(Xmin,Xmax,5...

make function to plot countour and 3D

f=@(X,Y) 2+X-Y+2*X.^2+2*X.*Y+Y.^2; plot3dfunc(f,-2,0,0,3) function plot3dfunc(f,Xmin,Xmax,Ymin,Ymax) x=linspace(Xmin,Xmax,5...

11 dagar ago | 0

| accepted

Answered

Add an image to subplot

axis image after you display the plot. This will set the aspect ratio to square so that the image does not get streched wide.

Add an image to subplot

axis image after you display the plot. This will set the aspect ratio to square so that the image does not get streched wide.

11 dagar ago | 1

| accepted

Answered

1*0 empty double row vector

19 < X is never true, so find() is going to return empty. What result were you hoping for in the case where the input value is ...

1*0 empty double row vector

19 < X is never true, so find() is going to return empty. What result were you hoping for in the case where the input value is ...

11 dagar ago | 0

Answered

Help in writing a a code for an array based on comdition.

See sum sign However, your description does not match your example. You say you want to replace positive numbers with 1, but yo...

Help in writing a a code for an array based on comdition.

See sum sign However, your description does not match your example. You say you want to replace positive numbers with 1, but yo...

11 dagar ago | 0

Answered

Slove function return empty solutions

Use dsolve for differential equations

Slove function return empty solutions

Use dsolve for differential equations

11 dagar ago | 1