Answered

Shade the region to the left of the graph

Simplest way is to use patch(). Something like this %Stall Speed rho = 0.002378; % at sea level Clmax = 2.7; Vs = 189.056; ...

Shade the region to the left of the graph

Simplest way is to use patch(). Something like this %Stall Speed rho = 0.002378; % at sea level Clmax = 2.7; Vs = 189.056; ...

alrededor de 3 horas ago | 0

Answered

How to plot multiple graph

You are using the symbolic variables incorrectly. Check this code % clc; clear all; close all; syms x f(x)=sin(5*x)./(x.^3); ...

How to plot multiple graph

You are using the symbolic variables incorrectly. Check this code % clc; clear all; close all; syms x f(x)=sin(5*x)./(x.^3); ...

alrededor de 3 horas ago | 0

Answered

Reading single value from text file

Try this str = fileread('data.txt'); peak_freq = regexp(str, 'Peak frequency \(Hz\) =[\s\t]*(\d*\.\d*)', 'tokens'); peak_fr...

Reading single value from text file

Try this str = fileread('data.txt'); peak_freq = regexp(str, 'Peak frequency \(Hz\) =[\s\t]*(\d*\.\d*)', 'tokens'); peak_fr...

alrededor de 4 horas ago | 1

| accepted

Answered

vectorise for loop with element wise multiplication

Loops are not always necessarily slow. However, the vectorized code is much more cleaner and readable. For the simple example, y...

vectorise for loop with element wise multiplication

Loops are not always necessarily slow. However, the vectorized code is much more cleaner and readable. For the simple example, y...

alrededor de 4 horas ago | 0

Answered

Matlab Newbie here / I want to multiselect files but it always gives me an error

When MultiSelect is on, then uigetfile() returns a cell array. So you need to specify which file to open in fopen like this fid...

Matlab Newbie here / I want to multiselect files but it always gives me an error

When MultiSelect is on, then uigetfile() returns a cell array. So you need to specify which file to open in fopen like this fid...

alrededor de 4 horas ago | 1

Answered

How to convert my data from hourly to daily (no timestamp )

See retime(): https://www.mathworks.com/help/matlab/ref/timetable.retime.html But If you just want daily average, then you can...

How to convert my data from hourly to daily (no timestamp )

See retime(): https://www.mathworks.com/help/matlab/ref/timetable.retime.html But If you just want daily average, then you can...

alrededor de 4 horas ago | 0

Answered

How to get rid of values from meshgrid

Try this syms u uo ur v x y Q C r T tt V=100;b=2;uo=-V*sin(Q);ur=V*2*pi*b/(2.*pi.*r)+V*cos(Q);r=(x.^2+y.^2).^0.5;Q=atan2(y,x)...

How to get rid of values from meshgrid

Try this syms u uo ur v x y Q C r T tt V=100;b=2;uo=-V*sin(Q);ur=V*2*pi*b/(2.*pi.*r)+V*cos(Q);r=(x.^2+y.^2).^0.5;Q=atan2(y,x)...

alrededor de 4 horas ago | 0

| accepted

Answered

A loop to extract and plot data from a table

I think you meant x = 0:1:9 (10 rows). You can do something like this t % 10x11 table M = table2array(t); 10x11 matrix plot(...

A loop to extract and plot data from a table

I think you meant x = 0:1:9 (10 rows). You can do something like this t % 10x11 table M = table2array(t); 10x11 matrix plot(...

alrededor de 5 horas ago | 0

Answered

How to compute integral when one of the limits is a vector

If you want to use all the points in x as the limits one after the other, then following is the way to do that FunctionToEvalua...

How to compute integral when one of the limits is a vector

If you want to use all the points in x as the limits one after the other, then following is the way to do that FunctionToEvalua...

alrededor de 5 horas ago | 1

| accepted

Answered

Browse CSV file and calculate the mean

1) Read the csv file using: readmatrix(): https://www.mathworks.com/help/matlab/ref/readmatrix.html, or readtable(): https://www...

Browse CSV file and calculate the mean

1) Read the csv file using: readmatrix(): https://www.mathworks.com/help/matlab/ref/readmatrix.html, or readtable(): https://www...

alrededor de 6 horas ago | 0

Answered

Make UIAxes Background invisible or hide it in APP Designer

It seems that the background color of a UIAxes cannot be set to 'none'. See the attached app for an alternative. It set the back...

Make UIAxes Background invisible or hide it in APP Designer

It seems that the background color of a UIAxes cannot be set to 'none'. See the attached app for an alternative. It set the back...

alrededor de 6 horas ago | 0

| accepted

Answered

The function plotxy() is not recognized

You need simscape toolbox to use this function: https://www.mathworks.com/help/physmod/simscape/index.html. Also, you need to ca...

The function plotxy() is not recognized

You need simscape toolbox to use this function: https://www.mathworks.com/help/physmod/simscape/index.html. Also, you need to ca...

alrededor de 7 horas ago | 0

| accepted

Answered

fitting complex to custom complex equation

There are several ways to fit the given data to a custom model in MATLAB. If you have the curve fitting toolbox, then you can us...

fitting complex to custom complex equation

There are several ways to fit the given data to a custom model in MATLAB. If you have the curve fitting toolbox, then you can us...

alrededor de 8 horas ago | 0

Answered

How can i compute an interpolated curve?

Check this code % generating curves x = linspace(1, 2, 100); y1 = x.^3 + 2 + rand(size(x))*0.1; % let t=10 for this curve y2...

How can i compute an interpolated curve?

Check this code % generating curves x = linspace(1, 2, 100); y1 = x.^3 + 2 + rand(size(x))*0.1; % let t=10 for this curve y2...

alrededor de 8 horas ago | 0

Answered

How to swap cells in matrix with code

Check this D = [8 1 6;3 5 7;4 9 2]; idx = find(D > 5); D(idx) = 0; Result >> D D = 0 1 0 3 5 0...

How to swap cells in matrix with code

Check this D = [8 1 6;3 5 7;4 9 2]; idx = find(D > 5); D(idx) = 0; Result >> D D = 0 1 0 3 5 0...

alrededor de 8 horas ago | 0

| accepted

Answered

datastore won't read variable names

Use PreserveVariableNames options ds = datastore('filename', 'PreserveVariableNames', true)

datastore won't read variable names

Use PreserveVariableNames options ds = datastore('filename', 'PreserveVariableNames', true)

alrededor de 8 horas ago | 0

Answered

How accurately Simscape Multibody calculates volume of a complex custom cad file solid?

It appears that MATLAB documentation does not give details about the process of calculating these values from geometry. However,...

How accurately Simscape Multibody calculates volume of a complex custom cad file solid?

It appears that MATLAB documentation does not give details about the process of calculating these values from geometry. However,...

alrededor de 9 horas ago | 0

Answered

hi , i'm trying to make a simple loop which is give me a useless syntax between what i need , please how can i remove ('ans=') thanks anyway

Use fprintf() for k=1:20 fprintf('<div> DIV %d </div>\n',k) end

hi , i'm trying to make a simple loop which is give me a useless syntax between what i need , please how can i remove ('ans=') thanks anyway

Use fprintf() for k=1:20 fprintf('<div> DIV %d </div>\n',k) end

alrededor de 10 horas ago | 0

Answered

What is the problem in this following program? Why my function isn't working?

Define it like this function [area] = tri_area(b,h) area = (0.5)*(b)*(h); end Read about MATLAB functions here: https://www....

What is the problem in this following program? Why my function isn't working?

Define it like this function [area] = tri_area(b,h) area = (0.5)*(b)*(h); end Read about MATLAB functions here: https://www....

alrededor de 11 horas ago | 1

| accepted

Answered

draw a boxplot from percentiles

Something like this data = [702.454 1761.20017 1863.878989 2058.24099 5206.202; 662.9978 854.7328411 921.9074214 1079....

draw a boxplot from percentiles

Something like this data = [702.454 1761.20017 1863.878989 2058.24099 5206.202; 662.9978 854.7328411 921.9074214 1079....

alrededor de 11 horas ago | 1

| accepted

Answered

Symbolic parameters not supported in nonpolynomial equations

This simply means that the equations are too complicated to be solved symbolically. Robot kinematic equations rarely have a clos...

Symbolic parameters not supported in nonpolynomial equations

This simply means that the equations are too complicated to be solved symbolically. Robot kinematic equations rarely have a clos...

alrededor de 11 horas ago | 0

Answered

How does the spring stiffness of the Revolute Joint in simscape defined?

It is defined here: https://www.mathworks.com/help/physmod/sm/ref/revolutejoint.html#bttq7al-2. It is the amount of torque requi...

How does the spring stiffness of the Revolute Joint in simscape defined?

It is defined here: https://www.mathworks.com/help/physmod/sm/ref/revolutejoint.html#bttq7al-2. It is the amount of torque requi...

alrededor de 12 horas ago | 0

Answered

App Designer not identifying 'readVoltage'

You have used 'b' as a global variable. In the base workspace, you need to define it as an Arduino object b = arduino; If it h...

App Designer not identifying 'readVoltage'

You have used 'b' as a global variable. In the base workspace, you need to define it as an Arduino object b = arduino; If it h...

alrededor de 13 horas ago | 0

Answered

Calculating correlation matrix from time series in an array

Use corrcoef() but first convert the matrix to correct form C = % 164 elements cell array Cv = [C{:}]; % creating a matrix co...

Calculating correlation matrix from time series in an array

Use corrcoef() but first convert the matrix to correct form C = % 164 elements cell array Cv = [C{:}]; % creating a matrix co...

alrededor de 15 horas ago | 0

Answered

Using LaTeX math in Simulink Block Name

The latex is only allowed in the annotations, not the block names. An alternate method is to create an annotation using latex an...

Using LaTeX math in Simulink Block Name

The latex is only allowed in the annotations, not the block names. An alternate method is to create an annotation using latex an...

alrededor de 15 horas ago | 1

| accepted

Answered

Debugging Newton's Method code in two variables,

Check this code f = @(x) nonlinear_equations(x); % Jacobian J = @(x) [cos( x(2) ), -x(1)*sin(x(2)); x(2)*cos(x(1)), si...

Debugging Newton's Method code in two variables,

Check this code f = @(x) nonlinear_equations(x); % Jacobian J = @(x) [cos( x(2) ), -x(1)*sin(x(2)); x(2)*cos(x(1)), si...

alrededor de 15 horas ago | 0

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Answered

Error in ports width and dimension in simulink

Fuzzy logic controller block requires two inputs using a mux block, as shown in the example at the end of this page: https://www...

Error in ports width and dimension in simulink

Fuzzy logic controller block requires two inputs using a mux block, as shown in the example at the end of this page: https://www...

alrededor de 15 horas ago | 0

Answered

Can you help me 2-D graph as shown.

Something like this x1 = linspace(0, 1); y1 = -2*x1 + 2.5 + rand(size(x1))*0.05; y1(end) = y1(end-1)-1; x2 = linspace(0,...

Can you help me 2-D graph as shown.

Something like this x1 = linspace(0, 1); y1 = -2*x1 + 2.5 + rand(size(x1))*0.05; y1(end) = y1(end-1)-1; x2 = linspace(0,...

alrededor de 16 horas ago | 0

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Answered

For Loop, Unequal Sizes Help

Change the line from theo_y_B(up) = X(up,1) + X(up,2) * b_t(:,up) + 0.5 * X(up,3) * b_t(:,up).^2; to theo_y_B(:, up) = X(up,...

For Loop, Unequal Sizes Help

Change the line from theo_y_B(up) = X(up,1) + X(up,2) * b_t(:,up) + 0.5 * X(up,3) * b_t(:,up).^2; to theo_y_B(:, up) = X(up,...

alrededor de 16 horas ago | 0

Answered

how to create a matrix from another

M = x(:, [end 2 4]) This is pretty basic stuff in MATLAB and you have other similar questions too. I ssuggest you to read about...

how to create a matrix from another

M = x(:, [end 2 4]) This is pretty basic stuff in MATLAB and you have other similar questions too. I ssuggest you to read about...

1 día ago | 0