Risposto

How can I solve this complex 4 equation with 4 unknowns variables

You can specify 'MaxDegree' as input to solve() syms K1 K2 K3 K4 equ1 = K2+K4-36 equ2 = K2*K4+K3+K1-486 equ3 = K2+2*K2*K3+2*...

How can I solve this complex 4 equation with 4 unknowns variables

You can specify 'MaxDegree' as input to solve() syms K1 K2 K3 K4 equ1 = K2+K4-36 equ2 = K2*K4+K3+K1-486 equ3 = K2+2*K2*K3+2*...

circa 2 anni fa | 0

Risposto

Do I need to uninstall another version of MATLAB before installing an new version with different products?

MATLAB installations are independent of each other. You can delete the previous installation directory directly before installin...

Do I need to uninstall another version of MATLAB before installing an new version with different products?

MATLAB installations are independent of each other. You can delete the previous installation directory directly before installin...

circa 2 anni fa | 0

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Risposto

Contour plot of XYZ data

Try this x = hfm(:,1); y = hfm(:,2); z = hfm(:,3); xg = linspace(min(x),max(x)); yg = linspace(min(y),max(y)); [Xg, Yg] ...

Contour plot of XYZ data

Try this x = hfm(:,1); y = hfm(:,2); z = hfm(:,3); xg = linspace(min(x),max(x)); yg = linspace(min(y),max(y)); [Xg, Yg] ...

circa 2 anni fa | 0

Risposto

How to find inverse kinematics given D-H parameters?

First create a rigidBodyTree from dh parameters: https://www.mathworks.com/help/robotics/ref/rigidbodyjoint.setfixedtransform.ht...

How to find inverse kinematics given D-H parameters?

First create a rigidBodyTree from dh parameters: https://www.mathworks.com/help/robotics/ref/rigidbodyjoint.setfixedtransform.ht...

circa 2 anni fa | 0

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Risposto

Building an Neural network with multiple inputs

The 10 in the line feedforwardnet(10, 'trainlm'); have nothing to do with the number of inputs. You can put any number here. I...

Building an Neural network with multiple inputs

The 10 in the line feedforwardnet(10, 'trainlm'); have nothing to do with the number of inputs. You can put any number here. I...

circa 2 anni fa | 0

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Risposto

Questions about making websites that run user applications

One option might be to use the MATLAB App server, but it seems that it is basically designed for an organization's internal use,...

Questions about making websites that run user applications

One option might be to use the MATLAB App server, but it seems that it is basically designed for an organization's internal use,...

circa 2 anni fa | 0

Risposto

How to hide web browser while using web function

Which function are you using to download the data? You can use websave(): https://www.mathworks.com/help/releases/R2020b/matlab/...

How to hide web browser while using web function

Which function are you using to download the data? You can use websave(): https://www.mathworks.com/help/releases/R2020b/matlab/...

circa 2 anni fa | 0

Risposto

machine eps related query

It happens because of finite precision of double() precision datatype: https://en.wikipedia.org/wiki/Double-precision_floating-p...

machine eps related query

It happens because of finite precision of double() precision datatype: https://en.wikipedia.org/wiki/Double-precision_floating-p...

circa 2 anni fa | 0

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Risposto

Add markers to a contour plot

It is not possible with single call of contour(). You need to hold the axes and then make a seperate call to plot() or scatter()...

Add markers to a contour plot

It is not possible with single call of contour(). You need to hold the axes and then make a seperate call to plot() or scatter()...

circa 2 anni fa | 0

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Risposto

How to Use?: New "Name=Value" Syntax for 2021a

I don't have access to R2021a, but I guess it is supposed to be something like this plot(XData,YData,'LineStyle=-','MarkerSize=...

How to Use?: New "Name=Value" Syntax for 2021a

I don't have access to R2021a, but I guess it is supposed to be something like this plot(XData,YData,'LineStyle=-','MarkerSize=...

circa 2 anni fa | 0

Risposto

How can I generate an Impulse Train of specific Sampling Frequency?

Try this T = 1; x = -5*T:5*T; stem(x, ones(size(x))) ylim([0 1.5])

How can I generate an Impulse Train of specific Sampling Frequency?

Try this T = 1; x = -5*T:5*T; stem(x, ones(size(x))) ylim([0 1.5])

circa 2 anni fa | 0

Risposto

how do I shade area under graph with specific x interval?

Try something like this a=10; t=0:0.1:200; c_L=0.2.*(1-exp(1).^(-1/a.*t)); t_shade = 60:0.1:200; c_L_shade = 0.2.*(1-exp(...

how do I shade area under graph with specific x interval?

Try something like this a=10; t=0:0.1:200; c_L=0.2.*(1-exp(1).^(-1/a.*t)); t_shade = 60:0.1:200; c_L_shade = 0.2.*(1-exp(...

circa 2 anni fa | 0

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Risposto

Solving Equations in MATLAB

There is no general solution to such a problem. A common way is to specify several starting points for the numerical solver and ...

Solving Equations in MATLAB

There is no general solution to such a problem. A common way is to specify several starting points for the numerical solver and ...

circa 2 anni fa | 0

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Risposto

How can I generate the Hankel matrix using the measured datapoints?

Try something like this y = [0 1 3 5 7; 0 2 4 6 8]; k = 2; % Y rows in output matrix [m, n] = size(y); i = hankel(1:n); i...

How can I generate the Hankel matrix using the measured datapoints?

Try something like this y = [0 1 3 5 7; 0 2 4 6 8]; k = 2; % Y rows in output matrix [m, n] = size(y); i = hankel(1:n); i...

circa 2 anni fa | 0

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Risposto

displaying RGB colours using SURF.

You can use texture mapping to display an RGB image on a surface(). See here: https://www.mathworks.com/matlabcentral/answers/91...

displaying RGB colours using SURF.

You can use texture mapping to display an RGB image on a surface(). See here: https://www.mathworks.com/matlabcentral/answers/91...

circa 2 anni fa | 0

Risposto

how to calculate the average for each row of cell array

First use cell2mat() and then apply mean() along rows R_mean = mean(cell2mat(R), 2)

how to calculate the average for each row of cell array

First use cell2mat() and then apply mean() along rows R_mean = mean(cell2mat(R), 2)

circa 2 anni fa | 1

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Risposto

How to add trendline to scatterplot?

Something like this x = [2 1 4 68 4 5] y = [5 4 2 23 21 50] p = polyfit(x, y, 1); px = [min(x) max(x)]; py = polyval(p, ...

How to add trendline to scatterplot?

Something like this x = [2 1 4 68 4 5] y = [5 4 2 23 21 50] p = polyfit(x, y, 1); px = [min(x) max(x)]; py = polyval(p, ...

circa 2 anni fa | 5

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Risposto

Generating and plotting functions.

The exponent also contain abs() function. You can write it like this t = -1:0.1:3; y = exp(-abs(t)/5); plot(t,y) Also, the u...

Generating and plotting functions.

The exponent also contain abs() function. You can write it like this t = -1:0.1:3; y = exp(-abs(t)/5); plot(t,y) Also, the u...

circa 2 anni fa | 0

Risposto

Why unifrnd(lb,ub,[nPop,D]) gives error?

This cannot be done in single call to unifrnd. You need a for-loop lb = [0 0 0 0]; ub=[10 10 pi pi]; nPop=30; D = numel(lb); ...

Why unifrnd(lb,ub,[nPop,D]) gives error?

This cannot be done in single call to unifrnd. You need a for-loop lb = [0 0 0 0]; ub=[10 10 pi pi]; nPop=30; D = numel(lb); ...

circa 2 anni fa | 0

Risposto

Calculating mean of different ranges in a Table

There are several ways to do this in MATLAB. Following shows one option M = rand(900, 10); C = mat2cell(M, 300*ones(size(M,1...

Calculating mean of different ranges in a Table

There are several ways to do this in MATLAB. Following shows one option M = rand(900, 10); C = mat2cell(M, 300*ones(size(M,1...

circa 2 anni fa | 0

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Risposto

How can I add column with for loop

The question is not clear. Are you looking for something like this url = {'nam1', 'nam2', 'nam3','nam5', 'name5', 'nam6'}; x...

How can I add column with for loop

The question is not clear. Are you looking for something like this url = {'nam1', 'nam2', 'nam3','nam5', 'name5', 'nam6'}; x...

circa 2 anni fa | 0

Risposto

Phase portrait of the system in a rectangle

You can use quiver(). For example, [x,y] = meshgrid(linspace(-1,1,20)); dx = 2*x-y-5; dy = 3*x-2*y-9; quiver(x, y, dx, d...

Phase portrait of the system in a rectangle

You can use quiver(). For example, [x,y] = meshgrid(linspace(-1,1,20)); dx = 2*x-y-5; dy = 3*x-2*y-9; quiver(x, y, dx, d...

circa 2 anni fa | 0

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Risposto

Interpolation over datetime for 2 arrays

Your data is not directly in the correct format for interp1(). You first need to pre-process your data. For example CGM_date = ...

Interpolation over datetime for 2 arrays

Your data is not directly in the correct format for interp1(). You first need to pre-process your data. For example CGM_date = ...

circa 2 anni fa | 0

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Risposto

please help me with this

Use square brackets instead of parenthesis in the definition of eqns syms t1 t2 t3 t4 t5 t6 eqns = [-0.7591*t1+0.3789*t2 == -...

please help me with this

Use square brackets instead of parenthesis in the definition of eqns syms t1 t2 t3 t4 t5 t6 eqns = [-0.7591*t1+0.3789*t2 == -...

circa 2 anni fa | 1

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Risposto

function repeat number?

combvec() from the Deep learning toolbox is most easiest solution a = [1 2 3] b = [1 2 3] C = combvec(a, b).'; % if the order...

function repeat number?

combvec() from the Deep learning toolbox is most easiest solution a = [1 2 3] b = [1 2 3] C = combvec(a, b).'; % if the order...

circa 2 anni fa | 1

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Risposto

Calculate the mean of multiple 3D arrays layer by layer

I am not sure why you are concerned about the layers. You are just taking an element-wise average of two matrices. Talking about...

Calculate the mean of multiple 3D arrays layer by layer

I am not sure why you are concerned about the layers. You are just taking an element-wise average of two matrices. Talking about...

circa 2 anni fa | 0

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Risposto

How do I create a function that solves systems of linear equations of N size?

"Is it possible to make a function like this?" Yes. Just name it something else, since size() is a built-in function. x = mySi...

How do I create a function that solves systems of linear equations of N size?

"Is it possible to make a function like this?" Yes. Just name it something else, since size() is a built-in function. x = mySi...

circa 2 anni fa | 0

Risposto

function day is not working in matlab 2020a

Function day() is defined for datetime input arguments. For example >> t = datetime('now'); >> day(t) ans = 21

function day is not working in matlab 2020a

Function day() is defined for datetime input arguments. For example >> t = datetime('now'); >> day(t) ans = 21

circa 2 anni fa | 0

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Risposto

problrem for desactivate MATALB on my old PC

Try deactivating the license on the old PC using the license center: https://www.mathworks.com/mwaccount/. Go to this link, sele...

problrem for desactivate MATALB on my old PC

Try deactivating the license on the old PC using the license center: https://www.mathworks.com/mwaccount/. Go to this link, sele...

circa 2 anni fa | 1

Risposto

Export big subplot problem

Which command are you using to save the pdf file? Are you using the GUI? I suggest using the exportgraphics(): https://www.mathw...

Export big subplot problem

Which command are you using to save the pdf file? Are you using the GUI? I suggest using the exportgraphics(): https://www.mathw...

circa 2 anni fa | 0