Risolto

Find the sum of the elements in the "second" diagonal
Find the sum of the elements in the diagonal that starts at the top-right corner and ends at the bottom-left corner.

quasi 14 anni fa

Risolto

Project Euler: Problem 6, Natural numbers, squares and sums.
The sum of the squares of the first ten natural numbers is, 1^2 + 2^2 + ... + 10^2 = 385 The square of the sum of the first ...

quasi 14 anni fa

Risolto

DC chopper
Input x is the sampled signal vector, may have both AC and DC components. output vector y should have AC components removed then...

quasi 14 anni fa

Risolto

Make one big string out of two smaller strings
If you have two small strings, like 'a' and 'b', return them put together like 'ab'. 'a' and 'b' => 'ab' For extra ...

quasi 14 anni fa

Risolto

Remove DC
Input x is the sampled signal vector, may have both AC and DC components. Output y should not contain any DC component. Examp...

quasi 14 anni fa

Risolto

Project Euler: Problem 10, Sum of Primes
The sum of the primes below 10 is 2 + 3 + 5 + 7 = 17. Find the sum of all the primes below the input, N. Thank you <http:/...

quasi 14 anni fa

Risolto

Create a cell array out of a struct
Create a cell array out of a (single) struct with the fieldname in the first column and the value in the second column: in: ...

quasi 14 anni fa

Risolto

Remove NaN ?
input -> matrix (n*m) with at least one element equal to NaN; output -> matrix(p*m), the same matrix where we deleted the enti...

quasi 14 anni fa

Risolto

Bottles of beer
Given an input number representing the number of bottles of beer on the wall, output how many are left if you take one down and ...

quasi 14 anni fa

Risolto

Arrange Vector in descending order
If x=[0,3,4,2,1] then y=[4,3,2,1,0]

quasi 14 anni fa

Risolto

Tell me the slope
Tell me the slope, given a vector with horizontal run first and vertical rise next. Example input: x = [10 2];

quasi 14 anni fa

Risolto

Elapsed Time
Given two date strings d1 and d2 of the form yyyy/mm/dd HH:MM:SS (assume hours HH is in 24 hour mode), determine how much time, ...

quasi 14 anni fa

Risolto

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]

circa 14 anni fa

Risolto

Which quadrant?
Given a complex number, output quadrant 'I' 'II' 'III' or 'IV' | II | I | ...

circa 14 anni fa

Risolto

inner product of two vectors
inner product of two vectors

circa 14 anni fa

Risolto

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...

circa 14 anni fa

Risolto

Reverse Run-Length Encoder
Given a "counting sequence" vector x, construct the original sequence y. A counting sequence is formed by "counting" the entrie...

circa 14 anni fa

Risolto

Cell joiner
You are given a cell array of strings and a string delimiter. You need to produce one string which is composed of each string fr...

circa 14 anni fa

Risolto

Sort a list of complex numbers based on far they are from the origin.
Given a list of complex numbers z, return a list zSorted such that the numbers that are farthest from the origin (0+0i) appear f...

circa 14 anni fa

Risolto

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...

circa 14 anni fa

Risolto

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...

circa 14 anni fa

Risolto

Fizz Buzz
Given an array of positive, non-zero, integers, return a cell array of strings the same size as the input, where each element in...

circa 14 anni fa

Risolto

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...

circa 14 anni fa

Risolto

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...

circa 14 anni fa

Risolto

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...

circa 14 anni fa

Risolto

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.

circa 14 anni fa

Risolto

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...

circa 14 anni fa

Risolto

pressure to dB?
given x ratio of pressure, find corresponding y dB

circa 14 anni fa

Risolto

All capital?
Are all the letters in the input string capital letters? Examples: 'MNOP' -> 1 'MN0P' -> 0

circa 14 anni fa

Risolto

Summing Digits within Text
Given a string with text and digits, add all the numbers together. Examples: Input str = '4 and 20 blackbirds baked in a...

circa 14 anni fa