
Johan
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finding a specific element based on conditions
1) Your data are row vectors and not column vectors which is why your table statement does not lead to what you expect. Tran...
1 day ago | 0
How to repeat value in Cell using MATLAB
Hello, I don't know if there is a builtin matlab function to do what you want, this should work: Value = {1,2,3} Count = {2,1,...
3 days ago | 0
Solved
Project Euler: Problem 1, Multiples of 3 and 5
If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9. The sum of these multiples is 23...
8 days ago
how to fill a new vector after a if condition?
I would convert your segment coordinates to points, this way points that are not unique would show that the segment is not an en...
10 days ago | 0
| accepted
Speeding up integration within nested for loops
One trick I know to increase speed of calculation is to vectorize your code. I'm not sure that would work for you but you could ...
10 days ago | 0
Merging Cell Array Elements in One Element
test= [{'1A'} {'2B'} {'3C'} {'4D'}] {cell2mat(test')}
27 days ago | 0
Storing elements of product in a row matrix and extracting the nonzero elements
The problem of your code is that you assign the results of your multiplaction to n, which mean that you will only store the last...
1 month ago | 0
Solved
Implement simple rotation cypher
If given a letter from the set: [abc...xyz] and a shift, implement a shift cypher. Example: 'abc' with a shi...
3 months ago
Combining two vectors into a new one
I don't know if there is a builtin function to do that but you can achieve using translation, logical condition and find: A = ...
4 months ago | 1
| accepted
How to write an 'if' script that changes a function depending on x?
you need to use elseif for secondary condition in your if statement: function y=funk(x) if x <= 3; y=sin...
4 months ago | 0
How do I calculate the moment of force due to a load distribution or at least get a point of application?
Assuming you have an XY array of data, dividing it in two part can be done by filtering the data against a chosen criteria: XYd...
4 months ago | 0
what is the efficient way to search for value in a large struct
I'm not sure that fits what you want but you could try making large arrays in a small structure instead of the opposite: tree(1...
4 months ago | 0
Solved
Word Counting and Indexing
You are given a list of strings, each being a list of words divided by spaces. Break the strings into words, then return a maste...
4 months ago
Making a Surface plot transparent
I think FaceAlpha does work but your mesh size is so small that you only see the edges plotted which are not transparent in your...
4 months ago | 0
How to improve my inefficient code?
(modified from comment to get rid of empty rows) Maybe this would work for you ? %transform your table in an array workdat...
4 months ago | 0
| accepted
How to reduce code lines for data post-processing by using for-loops?
You can use structure to organize your data and simplify your analysis. For example you can define the path of the file you want...
4 months ago | 1
| accepted
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...
4 months ago
Solved
Determine if input is odd
Given the input n, return true if n is odd or false if n is even.
4 months ago
Solved
Find all elements less than 0 or greater than 10 and replace them with NaN
Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...
4 months ago
Solved
Combinations without using nchoosek
You have to generate a matrix with all possible combinations of n elements *taken 2* at a time, *without using nchoosek(1:n,2)* ...
4 months ago
Solved
Check whether a Wordle guess is consistent with previous feedback
The game Wordle resembles the classic game Mastermind. Players try to guess a five-letter word, and after each guess they are to...
4 months ago
Solved
Generate a vector like 1,2,2,3,3,3,4,4,4,4
Generate a vector like 1,2,2,3,3,3,4,4,4,4 So if n = 3, then return [1 2 2 3 3 3] And if n = 5, then return [1 2 2...
4 months ago
Solved
Triangle sequence
A sequence of triangles is constructed in the following way: 1) the first triangle is Pythagoras' 3-4-5 triangle 2) the s...
4 months ago
Solved
Length of the hypotenuse
Given short sides of lengths a and b, calculate the length c of the hypotenuse of the right-angled triangle. <<https://i.imgu...
4 months ago
Solved
Area of an equilateral triangle
Calculate the area of an equilateral triangle of side x. <<https://i.imgur.com/jlZDHhq.png>> Image courtesy of <http://up...
4 months ago
Solved
Side of an equilateral triangle
If an equilateral triangle has area A, then what is the length of each of its sides, x? <<https://i.imgur.com/jlZDHhq.png>> ...
4 months ago
Solved
Time reverse indices
Time reverse the index values as follows IndexIn = [7 1 0] IndexOut = [7 6 0] Note that the indices are zero based and so...
4 months ago
I need help in the code. what am I doing wrong?
Hi, I think you can just add a check for a ':' character in your code. Alternatively you can also use regular expression to do ...
7 months ago | 0
| accepted
Solved
Side of a rhombus
If a rhombus has diagonals of length x and x+1, then what is the length of its side, y? <<https://imgur.com/x6hT6mm.png>> ...
8 months ago
Solved
Length of a short side
Calculate the length of the short side, a, of a right-angled triangle with hypotenuse of length c, and other short side of lengt...
8 months ago