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Question

is there a way to increase the speed of this code

The following code is taken from the book "MATLAB Guide to Finite Elements" and it takes too much time to run this code and I am...

9 years ago | 1 answer | 0

### 1

answerQuestion

Is there a way to catch errors with out using try catch statements?

Hi, I have created a GUI and deployed it. It works well but sometimes it gives error but user can't see it. Is there a way to...

9 years ago | 2 answers | 0

### 2

answersQuestion

Easy question for editbox?

Hello, I am using edit box as an input window. When user click enter button callback of the edit box runs and takes the input...

9 years ago | 1 answer | 0

### 1

answerQuestion

how to obtain brushed data programaticly

The same question is asked on the following link last year. ( http://www.mathworks.com/matlabcentral/answers/25488-brush-data-c...

9 years ago | 0 answers | 0

### 0

answersQuestion

Properties of user defined classes cannot be seen in variable editor. why? Please look at the picture.

Hi every one. As you can see in the picture at the following link I can not see properties of user defined classes in my workspa...

9 years ago | 2 answers | 2

### 2

answersPassing Data Between GUI and .m Script

It is better not to use GUIDE. Developing a GUI with a m file is not so hard. You can use GLOBAL variable to transfer and store ...

9 years ago | 0

Question

How can I change property of a user defined class by using set(my_class,'my_property',my_value)

How can I change property of a user defined class by using set(my_class,'my_property',my_value)

9 years ago | 1 answer | 0

### 1

answerQuestion

Please Help Me About Sub and Super Classes

Hello, I am trying to learn classes in Matlab here is a basic question. How can I write two classes A and B in order to represen...

9 years ago | 1 answer | 0

### 1

answerHow to pass a structure variable from callback to other callback .

you can use global variables easly to transfer data from one function to another one. function main myfun1 myfun2 ...

10 years ago | 0

Question

How to select point or lines on the graph

Hi everyone. Please run the following code. It will create a scatter grap with 5 points. I want to select the nearest point on t...

10 years ago | 2 answers | 0

### 2

answersQuestion

Finding size of a cell

Hi everyone, Let create a cell multi dimensinal cell A with the following code. for k=1:4 for i=1:k fo...

10 years ago | 1 answer | 0

### 1

answerSolved

Return the 3n+1 sequence for n

A Collatz sequence is the sequence where, for a given number n, the next number in the sequence is either n/2 if the number is e...

10 years ago

Solved

Find the numeric mean of the prime numbers in a matrix.

There will always be at least one prime in the matrix. Example: Input in = [ 8 3 5 9 ] Output out is 4...

10 years ago

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Summing digits

Given n, find the sum of the digits that make up 2^n. Example: Input n = 7 Output b = 11 since 2^7 = 128, and 1 + ...

10 years ago

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Pascal's Triangle

Given an integer n >= 0, generate the length n+1 row vector representing the n-th row of <http://en.wikipedia.org/wiki/Pascals_t...

10 years ago

Solved

Make a checkerboard matrix

Given an integer n, make an n-by-n matrix made up of alternating ones and zeros as shown below. The a(1,1) should be 1. Example...

10 years ago

Solved

Sum all integers from 1 to 2^n

Given the number x, y must be the summation of all integers from 1 to 2^x. For instance if x=2 then y must be 1+2+3+4=10.

10 years ago

Solved

Reverse the vector

Reverse the vector elements. Example: Input x = [1,2,3,4,5,6,7,8,9] Output y = [9,8,7,6,5,4,3,2,1]

10 years ago

Solved

How to find the position of an element in a vector without using the find function

Write a function posX=findPosition(x,y) where x is a vector and y is the number that you are searching for. Examples: fin...

10 years ago

Solved

Finding Perfect Squares

Given a vector of numbers, return true if one of the numbers is a square of one of the other numbers. Otherwise return false. E...

10 years ago

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Swap the first and last columns

Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All oth...

10 years ago

Solved

Triangle Numbers

Triangle numbers are the sums of successive integers. So 6 is a triangle number because 6 = 1 + 2 + 3 which can be displa...

10 years ago

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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:...

10 years ago

Solved

Column Removal

Remove the nth column from input matrix A and return the resulting matrix in output B. So if A = [1 2 3; 4 5 6]; and ...

10 years ago

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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...

10 years 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 ...

10 years ago

Solved

Determine if input is odd

Given the input n, return true if n is odd or false if n is even.

10 years ago