# Diogo Carvalho

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**Content Feed**

Solved

Double Factorial

Return double factorial n(n-2)...(5)(3)(1), n>0, odd n!! = n(n-2)...(6)(4)(2), n>0, even 1 ...

3 månader ago

Solved

Remove any row in which a NaN appears

Given the matrix A, return B in which all the rows that have one or more <http://www.mathworks.com/help/techdoc/ref/nan.html NaN...

3 månader ago

Solved

letter yes yes & letter no no

Split a string into two strings, wherein the first string has all alphabetic letters and the second string has all the remaining...

3 månader ago

Solved

Sum of series VI

What is the sum of the following sequence: Σk⋅k! for k=1...n for different n?

4 månader ago

Solved

Sum of series V

What is the sum of the following sequence: Σk(k+1) for k=1...n for different n?

4 månader ago

Solved

Sum of series IV

What is the sum of the following sequence: Σ(-1)^(k+1) (2k-1)^2 for k=1...n for different n?

4 månader ago

Solved

Sum of series III

What is the sum of the following sequence: Σ(2k-1)^3 for k=1...n for different n?

4 månader ago

Solved

Sum of series II

What is the sum of the following sequence: Σ(2k-1)^2 for k=1...n for different n?

4 månader ago

Solved

Stress-Strain Properties - 3

A brittle material will not exhibit a yield point. In other words, the yield point and failure point coincide. In such cases, th...

4 månader ago

Solved

Stress-Strain Properties - 1

This is the first in a series of problems regarding mechanics of materials, in particular, material properties drawn from stress...

4 månader ago

Question

Create a surface from several 1D plots

I have fitted several groups of scattered points (x,z) into 1D plots which vary on a third variable y. I now want to connect the...

5 månader ago | 2 answers | 0

### 2

answersQuestion

Error when running function "Attempt to execute SCRIPT support as a function: D:\MATLAB\toolbox\matlab\helptools\support.m"

I'm trying to run a function with inputs and I get this error. I've read the support thread found in: https://www.mathworks.co...

8 månader ago | 0 answers | 0

### 0

answersSolved

Vector creation

Create a vector using square brackets going from 1 to the given value x in steps on 1. Hint: use increment.

11 månader ago

Solved

Doubling elements in a vector

Given the vector A, return B in which all numbers in A are doubling. So for: A = [ 1 5 8 ] then B = [ 1 1 5 ...

11 månader ago

Solved

Flip the vector from right to left

Flip the vector from right to left. Examples x=[1:5], then y=[5 4 3 2 1] x=[1 4 6], then y=[6 4 1]; Request not ...

11 månader ago

Solved

Whether the input is vector?

Given the input x, return 1 if x is vector or else 0.

11 månader ago

Solved

Get the length of a given vector

Given a vector x, the output y should equal the length of x.

11 månader ago

Question

How to restart a function if it takes too long to run?

Hello! I created a time stepping function to solve differential dynamic equations. Within this function I have a while loop that...

mer än ett år ago | 1 answer | 0

### 1

answerHow to retrieve outputs from an .m file into my GUI?

I figured it out. Apparently, the input variables that went into the function still weren't considered as such. Thus, the functi...

mer än ett år ago | 0

| accepted

Question

How to retrieve outputs from an .m file into my GUI?

I'm building a GUI using guide in which I want to use a drop down menu to perform a series of procedures. Those are as follows...

mer än ett år ago | 2 answers | 0

### 2

answersSolved

Create times-tables

At one time or another, we all had to memorize boring times tables. 5 times 5 is 25. 5 times 6 is 30. 12 times 12 is way more th...

mer än ett år 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...

mer än ett år ago

Solved

Sudoku square

We have a small Sudoku square, but one number is missing. x = [ 1 5 4 8 6 3 0 9 7 ] Make a function, wher...

mer än ett år ago

Solved

Check to see if a Sudoku Puzzle is Solved

*Description:* Your task, should you choose to accept it, is to make a function that checks to see if a 9x9 matrix of integer...

mer än ett år ago

Solved

Solve the Sudoku Row

*Description* A simple yet tedious task occurs near the end of most Sudoku-solving algorithms, computerized or manual. The ta...

mer än ett år ago

Solved

Crunch that matrix!

You are given an M x N matrix. Write a script that will compress this matrix into an M x (N/3) matrix, where each of the terms ...

mer än ett år ago

Solved

Is this triangle right-angled?

Given three positive numbers a, b, c, where c is the largest number, return *true* if the triangle with sides a, b and c is righ...

mer än ett år ago