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Determine if input is odd or even
Determine if input is odd or even, sample problem

7 years ago

Solved

Calculate the square of a number (Super Easy)
The goal is to calculate the square (y) of a number (x). Good way to start MatLab for beginners.

7 years ago

Solved

Iccanobif numbers 1
There are a lot of problems in Cody that deal with Fibonacci numbers (1, 1, 2, 3, 5, 8, 13, 21 etc...) so let's turn things arou...

7 years ago

Solved

Add consecutive integer numbers
Given consecutive numbers, add the numbers *without using the sum command in MATLAB.*

7 years ago

Solved

Number Power
Raise a number to itself.

7 years ago

Solved

Cannibal eating odd and even numbered men
There are N men in a queue. A cannibal eats either all odd-numbered or all even-numbered men in the queue at a time. In the fi...

7 years ago

Solved

Muphry's Law of MATLAB
You're running some simple multiplication problems through MATLAB for error checking purposes, but nothing seems to come up with...

7 years ago

Problem

Lunar Arithmetic (Multiplication)
<https://oeis.org/A087061 OEIS link for a description of lunar arithmetic> Simply take the larger digit when adding and take ...

7 years ago | 5 | 50 solvers

Problem

Lunar Arithmetic (Addition)
<https://oeis.org/A087061 OEIS link for a description of lunar arithmetic> Simply take the larger digit. Example 1: ...

7 years ago | 1 | 61 solvers

Solved

Sum of unique multiples of 3 and 5
If we list all the natural numbers up to 15 that are multiples of 3 or 5, we get 3, 5, 6, 9, 10, 12 and 15. The sum of these mul...

7 years ago

Solved

count upper and lower case characters
In a given input string, count and return the number of upper and lower case characters as u and l respectively. For example:...

7 years ago

Solved

Raise each element to the power of its index in a matrix
In a matrix, A = [1,2;3,4] raise the power of each element like: 1^1+2^3+3^2+4^4 and add it all to produce the result 274

7 years ago

Solved

Exponents in Factorials
It's time to get excited about numbers!!! Well, we're just dealing with factorials here, but it's still a good reason to get ex...

7 years ago

Solved

Amicable numbers
Test whether two numbers are <https://en.wikipedia.org/wiki/Amicable_numbers amicable>, meaning that the sum of the proper divis...

7 years ago

Solved

You never ask a lady her age
Instead you ask her to multiply her age by 10, then subtract any of the first nine multiples of 9 (9,18,...,81), and tell you th...

7 years ago

Solved

New Matrix with vector addition on diagonal
consider 2 vectors x=[1 2 3] y=[4 5 6] then generate a new Matrix, where Addition of x & y will be diagonal Elements...

7 years ago

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Reverse the Matrix
Given a Matrix A, reverse it. Such that, last element of A becomes 1st and vice versa. for example: Input = [1 2 3;4 5 ...

7 years ago

Solved

Return all matrix elements except elements on diagonal
Consider a given Matrix A=[a b c; d e f; g h i] then return a row vector T such that it contains all the El...

7 years ago

Solved

Transpose the Matrix
Transpose the given matrix, e.g. x=[a b;c d] transpose of x = [a c;b d]

7 years ago

Solved

Get the combinations
Consider p,q = 2 vectors of same or different length. Get a Output Array which has all the possible combinations of Elements o...

7 years ago

Solved

Find the Pattern
Find the pattern between input and output. Write a function that gives the correct output for any input. *Hint: magic*

8 years ago

Solved

Large Sum (inspired by Project Euler 13)
Your function will be provided an arbitrary number of numbers of arbitrary sizes as a cell array of strings. Some numbers will b...

8 years ago

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how many of the entries are positive?
Given x= sin(linspace(0,10*pi,100)), how many of the entries are positive?

8 years ago

Solved

The Deadly Sin
Melvyn and Banner are fighting over chocolates. Melvyn has X chocolates, while Banner has Y. Whoever has a lesser number of choc...

8 years ago

Solved

Counting Squares
An algorithm starts with a single square and on each of its next iterations adds new squares all around the outside as shown bel...

8 years ago

Solved

Seperate array to small section according to its index position
Given a integer n, we can generate a sequence [0,1,2,3,4,..., 2^n-1], then we separate it to two sequence according to their ind...

8 years ago

Solved

Find argmax of a function
You are given vectors x and y (=f(x)). Return the element of x for which f(x) is maximized.

8 years ago

Solved

Pass the Threshold!!
Write a Matlab function that will take as input a matrix of arbitrary dimensions and a scalar threshold value, and return a vec...

8 years ago

Solved

Five Fingers
A little girl has just learnt how to count from 1 to N using the five fingers of her left hand as follows. She starts by calling...

8 years ago

Solved

Calculate the h-index
H-index is a powerful tool for quantifying the scientific contribution of a researcher. H-index is defined as follows (source - ...

8 years ago