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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 + ...
7 years ago
Solved
Weighted average
Given two lists of numbers, determine the weighted average. Example [1 2 3] and [10 15 20] should result in 33.333...
7 years ago
Submitted
query neighbor indices function for ndtrigrid
Function to compute neighbor indices for a given index vector of a vertex generated by ndtrigrid
7 years ago | 9 downloads |
Submitted
N dimension regular triangular grid
Regular triangular grid in any dimension Ndim.
7 years ago | 38 downloads |
Answered
cmd+0 keyboard shortcut from Live Editor to Command Window
Hi, Is this shortcut still available on Matlab latest versions ? And what about the ones listed here ? (I am running R2017b, bu...
cmd+0 keyboard shortcut from Live Editor to Command Window
Hi, Is this shortcut still available on Matlab latest versions ? And what about the ones listed here ? (I am running R2017b, bu...
7 years ago | 0
Question
packing function for the file exchange
Hi, I updated a function of mine I created for the file exchange : Any 3D rotation The main function -rotate_3D- is well inclu...
7 years ago | 1 answer | 0
1
answerQuestion
Where is located the "auto generated HTML file" once you publish in Matlab file exchange ?
Hi, I am a contributor to the file exchange and I have one or two files which may worth being published (meaning with an onli...
8 years ago | 1 answer | 0
1
answerSolved
The Hitchhiker's Guide to MATLAB
Output logical "true" if the input is the answer to life, the universe and everything. Otherwise, output logical "false".
9 years ago
Solved
The Goldbach Conjecture
The <http://en.wikipedia.org/wiki/Goldbach's_conjecture Goldbach conjecture> asserts that every even integer greater than 2 can ...
9 years ago
Solved
Back and Forth Rows
Given a number n, create an n-by-n matrix in which the integers from 1 to n^2 wind back and forth along the rows as shown in the...
9 years ago
Solved
Most nonzero elements in row
Given the matrix a, return the index r of the row with the most nonzero elements. Assume there will always be exactly one row th...
9 years ago
Solved
Who Has the Most Change?
You have a matrix for which each row is a person and the columns represent the number of quarters, nickels, dimes, and pennies t...
9 years ago
Solved
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...
9 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...
9 years ago
Solved
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...
9 years ago
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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...
9 years 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 ...
9 years 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...
9 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. Examp...
9 years ago
Solved
radius of a spherical planet
You just measured its surface area, that is the input.
9 years ago
Solved
Fibonacci sequence
Calculate the nth Fibonacci number. Given n, return f where f = fib(n) and f(1) = 1, f(2) = 1, f(3) = 2, ... Examples: Inpu...
9 years ago
Solved
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...
9 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 ...
9 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]
9 years 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...
9 years ago