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Even Sum
Calculate the sum of all even numbers between 1 and a given positive integer n. Write a function that takes n as input and retur...

3 years ago

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Find duplicate number from a vector of size n + 1 containing numbers from 1:n
From a given vector of size n + 1, return the duplicate number. Constraints The vector can only contain numbers from 1 to ...

3 years ago

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Find the volume of a cube
Given a cube with edge length x, calculated the volume of the cube.

3 years ago

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Cycle Detection
Detect if a graph has cycles: Inputs n: the number of vertices (where each vertex corresponds to an integer from 1 to n) edge...

3 years ago

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Sum the two halves of an array with an even number of elements
given an array of an even number of elements, sum the front and back half of the array and return the sums as an array For exam...

3 years ago

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Implement Euler's formula for calculating polyhedron edges
Your function will take as input the number of faces f and number of vertices v of a polyhedron. It will output the number of ed...

3 years ago

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Add Even and Subtract Odd Numbers in an Array
For an input array, add all the even values and subtract the odd values. This final value is the output. E.g. input = [1 2 3 4...

3 years ago

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findPositiveEvenNumbers
Write a MATLAB function findPositiveEvenNumbers that takes an array of integers as input and returns a new array containing only...

3 years ago

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How many revolutions around the earth
Calculate how many revolutions you will around the earth till 1/1/2100. Given the birhdate find your age in number of days on 1...

3 years ago

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Word with Highest Frequency
Write a MATLAB function that takes in a string and returns the word with the highest frequency in the string. The function shoul...

3 years ago

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Check for armstrong number
Given a number, check if it is an armstrong number. Eg: n = 371 Output: 1 Eg: n = 75 Output: 0

3 years ago

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掃き出し法を実装して、連立一次方程式を解いてみよう
※本問は、2023/7/24開催の、筑波大学でのセミナーのために作成した問題です。掃き出し法を使った連立一次方程式の解法を穴埋めで実装してみましょう。左辺と右辺を、それぞれ以下の行列Aおよび列ベクトルBで表したものが与えられたとします。この時、...

3 years ago

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Am I a city or a state
Input will be an array of cities and states. Also, lists of cities and states will be passed. Replace every city name with "cit...

3 years ago

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Convert row and column subscripts to linear indices
Convert 2D row and column subscripts to linear indices WITHOUT sub2ind Example: row = [1 2 3 1]; col = [2 2 2 3]; sz = [3 3]...

3 years ago

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Find collatz series next number
For given x, if x is even, output is (x/2) if x is odd, output is (3x+1)

3 years ago

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How many offices does MathWorks have in the UK
Please write a function that returns the number of offices MathWorks has in the UK.

3 years ago

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2行2列の行列の行列式を求めてみよう
ある2行2列の行列の入力に対して、行列式を出力してください。例えば、入力が(1,2; 3,4)のとき、出力は1*4-3*2で-2となります。

3 years ago

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Calculate the sum of first x natural numbers
Calculate the sum of first x natural numbers for example if n=10 output =1+2+..+10=55

3 years ago

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Miles to go before I sleep
Recently, my car's odometer passed 56789. Given an odometer reading, output how many miles need to be driven to get the next mi...

3 years ago

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Number Puzzles - 017

3 years ago

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Prime Magic Squares

3 years ago

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Combine complex conjugates first when computing the product of vector
Analytically, the product of complex conjugates yields a real result. When numerically computing the product of a vector contai...

3 years ago

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"Bubblegum, Bubblegum, in a dish; How many pieces do you wish?"
The child's game "bubblegum, bubblegum, in a dish; how many pieces do you wish?" is a way of eliminating players until a single ...

3 years ago

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Sherlock Holmes: The Spy Problem
A guest at a party is a spy if this person is not known by any other guest, but knows all of them. There is at most one spy at a...

3 years ago

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Pattern find
FInd the pattern x = 3; \y=1558 x = 10; \y= 2657548

3 years ago

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balance vector
Given a non-empty vector x with integer elements. x shall be called balance vector if one can split the elements of x into two g...

3 years ago

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Google Drive: MATLAB mat file download
Matlab 'mat' files are notoriously hard to email and download as they are binary files. To make a 'mat' file downloadable from ...

3 years ago

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Google Drive file download
This Challenge is to download a file from GoogleDrive given its "copylink" provided URL and a file name. GoogleDrive links fail...

3 years ago

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Compute the Sisyphus sequence
A recent article in the New York Times featured the Online Encyclopedia of Integer Sequences, founded by Neil J.A. Sloane. One o...

3 years ago

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Solve a Weird Calculator puzzle
The September 2012 issue of GAMES Magazine had a Weird Calculator puzzle by Erich Friedman. In this puzzle, the calculator has o...

3 years ago