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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)* ...

6 maanden ago

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A (wrong) place for everything, and everything in its (wrong) place

You have an equal number of cups and balls, each labelled from one to N. You randomly place one ball in each cup. Determine th...

6 maanden ago

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Put m balls into n boxes (again)

According to <http://www.mathworks.com/matlabcentral/cody/problems/1516-put-m-balls-into-n-boxes Cody Problem 1516>, if I put 3 ...

6 maanden ago

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Create Combination

Motivation: In many problems, we need to create combinations with the function nchoosek. In some cases, however, choices are lim...

6 maanden ago

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サイコロを作ろう

1から6までの独立かつランダムな数値を返すような関数を作成しましょう。 例： >> [x1,x2] = rollDice(); と入力すると x1 = 5 x2 = 2 のような解を返します。

6 maanden ago

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Convert to Binary Coded Decimal

Convert from decimal representation to <http://en.wikipedia.org/wiki/Binary-coded_decimal Binary Code Decimal> (or BCD) represen...

6 maanden ago

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Neither minima nor maxima

Input v is a vector. Return all the elements of v which are not a local minimum or maximum. Example: v = [1 2 3 4 5] Ou...

6 maanden ago

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Elements with highest local average

Input v is a row vector such that length(v)>3. Consider a sliding window of length 3 that is used to calculate the local average...

6 maanden ago

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Sum of first n terms of a harmonic progression

Given inputs a, d and n, return the sum of the first n terms of the harmonic progression a, a/(1+d), a/(1+2d), a/(1+3d),....

6 maanden ago

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Calendar Matrix

Return a calendar matrix for the given values of month and year. Assume that Sunday is the first day of the week. The resulting ...

7 maanden ago

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Triangular matrices in 3D array

Given a 3D numeric array _x_, return an array _y_ of the same size in which all entries to the right of the main diagonal are ze...

7 maanden ago

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Generate this matrix

Generate the following matrix. n = 2; out = [-4 -3 -2 -1 0 -3 -2 -1 0 1 -...

7 maanden ago

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Reverse Calculator

Use this reverse calculator and give correct output Its simple, In my Reverse calculator if you press 0 it will be considered...

7 maanden ago

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Find last non-zero in a given dimension

You are given a logical matrix *BW* _of any dimension_, and a dimension *dim*. You need to find the locations of the last non-ze...

7 maanden ago

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Put m balls into n boxes

Can you find all the cases where, if I put 3 balls into 2 boxes the case is 1 1 1 1 1 2 1...

7 maanden ago

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Get ranking of a combination

I have the numbers pulled without replacement from the set [1 2 3 4 5 6 7 8 9 10 11 12 13]; They are then ordered from least to...

7 maanden ago

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ABBREVIATION

Abbreviate the given string. Consider Only Capital Letters. EXAMPLE If input is 'Abbreviation of The Given String' then ou...

7 maanden ago

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Converting numbers back from extended form

Thanks for all the help you guys gave me on writing out the numbers in extended form in <http://www.mathworks.com/matlabcentral/...

7 maanden ago

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Numbers in extended form

Shhhhhhh. Don't tell my daddy, but I'm borrowing his Cody account so all of you very smart people can help me out. I just star...

7 maanden ago

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Additive persistence

Inspired by Problem 2008 created by Ziko. In mathematics, the persistence of a number is the *number of times* one must apply...

7 maanden ago

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Ripping numbers apart!

So you have to "rip" a number apart into individual digits... The end output is a cell. That is if: x = 12345678 o...

7 maanden ago

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What is the next step in Conway's Life?

Given a matrix A that represents the state of <http://en.wikipedia.org/wiki/Conway's_Game_of_Life Conway's game of Life> at one ...

7 maanden ago

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Inscribed Pentagon?

Your function will be provided with the five vertices of a pentagon (p) as well as the center point (cp) and radius (r) of a cir...

7 maanden ago

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Is this is a Tic Tac Toe X Win?

For the game of <https://en.wikipedia.org/wiki/Tic-tac-toe Tic Tac Toe> we will be storing the state of the game in a matrix M. ...

7 maanden ago

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Missing five

Convert decimal numbers to a base-9 notation missing the digit *5* <<http://www.alfnie.com/software/missing5.jpg>> Too man...

7 maanden ago

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Find the nearest prime number

Happy 5th birthday, Cody! Since 5 is a prime number, let's have some fun looking for other prime numbers. Given a positive in...

7 maanden ago

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Extra safe primes

Did you know that the number 5 is the first safe prime? A safe prime is a prime number that can be expressed as 2p+1, where p is...

7 maanden ago

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Find matching string from a list of strings

Write a function that returns a string that is a unique match (if it exists) of the string |inStr| from a list of strings |strLi...

7 maanden ago

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Transposition as a CIPHER

This all about transcripting a text message. If the input string is: *s1 = 'My name is Sourav Mondal'*, then the output is: *s2...

7 maanden ago

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Formatting currency numbers

Given a number, format it properly for textual display using the notation $xxx,xxx,xxx.xx. Assume that no more than two digits ...

7 maanden ago