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**Content Feed**

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

### 1

answerQuestion

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

### 0

answersQuestion

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

### 1

answerQuestion

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

### 1

answerQuestion

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

### 1

answerQuestion

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

### 1

answerQuestion

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

### 1

answerQuestion

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

### 1

answerQuestion

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

### 1

answerHow 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

### 1

answerSubstract 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

### 1

answerCalculating 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

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

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

### 1

answerSolved

Determine whether a vector is monotonically increasing

Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...

mer än 3 år ago

Solved

Select every other element of a vector

Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...

mer än 3 år ago

Solved

Find the sum of all the numbers of the input vector

Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

mer än 3 år ago

Solved

Times 2 - START HERE

Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

mer än 3 år ago

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

### 1

answerFinding 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

### 1

answerQuestion

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

answershow 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

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

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

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

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