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Question

How to force Matlab to be consistent with trigonometric expressions
I have two symbolic matrices. They are identical, but the simplifications of their trigonometric expressions are not. Therefore,...

nästan 2 år ago | 1 answer | 0

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answer

Question

PID Controller Tuning Based on Measured Multi-Input Multi-Output
I've designed position controller that allows me to control the position of the robot's end-effector. The inputs are the x_d,y_d...

ungefär 2 år ago | 0 answers | 0

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answers

Question

Quaternions with symbolic elements
I'm trying to create quaternion number that contains symbolic elements but Matlab throws an error. syms a d=quaternion(1,2,3,...

ungefär 2 år ago | 1 answer | 0

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answer

Question

How to create a single gobjects for different plots to avoid using clf
I'm trying to use plot() several times without using clf because this causing my animation to blink. In the discussion in here [...

mer än 2 år ago | 1 answer | 0

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answer

Question

plot is blinking when clearing figure
I'm doing a project related to sending/receiving via udp port. Currently, I'm doing the project based on two MATLAB sessions. Bo...

mer än 2 år ago | 1 answer | 0

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answer

Question

How to use ode solvers inside while/for loops for animation?
It is not lucid from the documnation how to use the solution of an ODE at each step. The examples show how one can pass the enti...

mer än 2 år ago | 1 answer | 0

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answer

Question

Efficient way to implement this UDP protocol for loopback IP
I'm working on a project where I need to send data via UDP protocol from one PC to another. Currently, I'm using two Matlab sess...

mer än 2 år ago | 1 answer | 0

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Question

Clarification about modifying properties in handle class
Take a look at the following class classdef Counter < handle properties count end methods ...

mer än 2 år ago | 1 answer | 0

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answer

Question

Multithread inside class method
I would like to implment a project for teleoperation task in robotics. In C++, I can create a class with method that keeps liste...

nästan 3 år ago | 1 answer | 0

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Answered
How to delete specific values from matrix
You can't delete a single element in a matrix. This will affect the structure of the matrix. You could delete an entire row or c...

nästan 3 år ago | 0

Question

How to avoid the dot operator when accessing property inside class method
I have a class that contains method. When I access one of properties, I need to use dot operator as follows: classdef Robot < h...

nästan 3 år ago | 1 answer | 0

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Answered
Substract all elements from one vector minus all elements from other vector
t1 = datetime(2013,11,5,23,2,0); t2 = datetime(2013,10,5,23,3,0); t3 = datetime(2013,10,5,23,1,0); vec1 = [t1 t2 t3]; t4 = d...

nästan 3 år ago | 0

Question

Adding Delay/Jitter to TCP/IP protocol
I have two Matlab sessions opened. I can send adn recieve data via tcpserver/tcpclient. I would like to emulate network delay/ji...

nästan 3 år ago | 1 answer | 0

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Answered
Calculating Equation of a Line with Known Angle Relative to Other Line
where m is the slope of a line. In your case, the angle and one of the slop of the intersected lines are known.

mer än 3 år ago | 0

Answered
Not enough input arguments
You are defining the names of inputs like the names of the ouputs. The proper header of function is like this function [outpu...

mer än 3 år ago | 0

Answered
Matrixes must agree error
If you would like to carry out element-by-element mutliplication, vectors must have same size. In your case f has 4 elements whe...

mer än 3 år ago | 1

Question

How to define transfer function as function in s
In control systems, we use transfer functions a lot. One way to define transfer function is merely to use tf(). For example, we ...

mer än 3 år ago | 1 answer | 0

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answer

Question

Inconsistent result with the documentation
Take a look at a feedback system where G=1/s and H=1 where G is forward feedback and H backward feedback. ----O---------|G|-...

ungefär 4 år ago | 1 answer | 0

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Answered
Finding a number in an array less than 2
For this case, you may consider using vectorization. Try this code A = [0 -1 2 3 2 5 -2]; A(A<2)

mer än 4 år ago | 0

Question

Clarification about using only the first 'namelengthmax' characters of the name
In Matlab documentation, it states the following Although variable names can be of any length, MATLAB uses only the first N ch...

mer än 4 år ago | 1 answer | 0

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answer

Question

Remove or Undo GridLayout with App Designer.
I'm using app designer. I've noticed I can't undo or remove grid layout. Is there any solution for this problem? I'm using Matla...

mer än 4 år ago | 2 answers | 2

2

answers

Answered
how to generate matrix with any size in same pattern
n=5; v =-2*ones(1,n); p =ones(1,n-1); B =diag(v); C =diag(p,1); D =diag(p,-1); A=B+C+D The result is A = -2 1...

mer än 4 år ago | 0

Answered
Mean of certain elements within a matrix
A=[1 2 3 4 5 6; 7 8 9 10 11 12;13 14 15 16 16 18;19 20 21 22 23 24] [row,~]=size(A); for i=1:row-1 c = A(i,[5 6]); r...

mer än 4 år ago | 0

Answered
How to calculate moving average
Take a look this data file=[1 2 3 4]; movmean(file,3) which returns 1.5000 2.0000 3.0000 3.5000 The filter works...

mer än 4 år ago | 3

Answered
plot with points in file
Assume data stored in this form 1 23 2 34 3 54 The code is file = load('data.txt'); n=3; x=file(randi(10,1,n),1); % 10:...

mer än 4 år ago | 0

Answered
Array indices must be positive integers or logical values.
Indices must be postivie integer. In your code, lambda is a vector that contains non-integers. lamda = 0:0.01:3; ... l_sun(...

mer än 4 år ago | 0

Answered
n! permutation matrices
You may consider creating multidemintional matrix as follows: I=eye(4); pr=perms(1:4); A=zeros(4,4,24); for i=1:24 A(:,:,...

mer än 4 år ago | 0