解決済み


Cumulative probability of finding an unlikely combination
This is a supplemental problem to the <http://www.mathworks.com/matlabcentral/cody/problems/621-cryptomath-addition CryptoMath> ...

3年以上 前

解決済み


Implement Solitaire cipher for N long deck.
Implement the <http://en.wikipedia.org/wiki/Solitaire_(cipher) solitaire cypher>. Given a starting permutation of numbers [1:...

3年以上 前

解決済み


Cryptomath: Addition
W A I T + A L L --------- G I F T S equals: 9 6 0 8 + 6 7 7 --------- 1 0 2 8 5 Given str...

3年以上 前

解決済み


Retirement savings
At the start of what year will you have reached or exceeded a savings goal? Parameters (all are constant scalars given in a s...

3年以上 前

解決済み


Avalaible area: wall construction
You need to build a wall to enclose a certain area. Calculate the available area after you build the wall. Assumptions * ...

3年以上 前

解決済み


Does the coin touch the line?
If we throw a coin that has a diameter of d, its center will land in a grid n x m. What is the probability that the coin land...

3年以上 前

解決済み


Find the Connecting Path
Here is a matrix x x = [7 6 8 5 7 2 4 5 1 3 0 0 0 7 7 7 7 7 0 0 0 0 0 0 0 0 0 0 0 5 5 5 5 5 0 0 0 0 0 0...

3年以上 前

解決済み


Nth roots of unity
First, find the n nth roots of unity. eg if n = 6, find the n distinct (complex) numbers such that n^6 = 1. <https://en.wiki...

3年以上 前

解決済み


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.

3年以上 前

解決済み


How to permute given 3d matrix?
A(:,:,1)=[1 3] A(:,:,2)=[2 2] A(:,:,3)=[4 3] Change rows to columns and columns to rows, similar to transpose. Resul...

3年以上 前

解決済み


How to calculate log?
There is a log that have base 5. How to calculate? log5(x)?

3年以上 前

解決済み


Calculate area of sector
A=function(r,seta) r is radius of sector, seta is angle of sector, and A is its area. Area of sector A is defined as 0.5*(r^2...

3年以上 前

解決済み


Frequency Analysis of Text
Frequency analysis is a common task in cryptoanalysis. It is essentially counting the occurrences of alphabets (regardless of ca...

3年以上 前

解決済み


Calculate vowel / consonant ratio of a string
Given a string, calculate the ratio of vowels to consonants for example : x = 'This is a very good Day!' y = 7/11

3年以上 前

解決済み


Find the next prime number
Find the next prime number or numbers for given n. For example: n = 1; out = 2; or n = [5 7]; out = [7 11]; ...

3年以上 前

解決済み


Find number patterns in rows of a matrix...
So I think this may be a hard one, may be it was only hard for me! So here is what it is, I will give a matrix, with some numbe...

3年以上 前

解決済み


Find same numbers touching each other...
So the goal here is to find any number that is equal to its immediate neighbors and mark it true. Here is some examples: x...

3年以上 前

解決済み


The sum of individual numbers...
Well this one is taking a number and then summing the individual parts till you reach a value of 1, 2, 3, 4, 5, 6, 7, 8, 9, or 0...

3年以上 前

解決済み


Finding the next number in a number list, are you able to crack it!
So it goes like this, I give a number list and you find the next value! I found a way to do it, just wondering how many other...

3年以上 前

解決済み


Can you beat the lottery?
Well this one you may not get every time, but it is a lottery! Here is the code that generates the lottery numbers (you can try ...

3年以上 前

解決済み


Ohm's Law
Well its Ohm's law... So V = IR! I will give two of the three values, such as V and I or I and R and you have to return th...

3年以上 前

解決済み


Fast 1-D Convolution (same shape)
Pursuant to the first problem in the <http://www.mathworks.com/matlabcentral/cody/?term=Fast+1-D+Convolution fast 1-D convolutio...

3年以上 前

解決済み


Fast 1-D Convolution (valid shape)
Pursuant to the first problem in the <http://www.mathworks.com/matlabcentral/cody/?term=Fast+1-D+Convolution fast 1-D convolutio...

3年以上 前

解決済み


Cody meets Xiangqi: foresee the unseen (Part 1)
This is the first part of the Xiangqi series. The second part in this series is: <http://www.mathworks.com/matlabcentral/cody/pr...

3年以上 前

解決済み


String Array Basics, Part 4: Convert String Array with Missing Values to Cell Array
<http://www.mathworks.com/help/matlab/characters-and-strings.html String array> and cell array are two types of containers for s...

3年以上 前

解決済み


Generating random matrix with given probability mass function
Inspired by <http://www.mathworks.com/matlabcentral/cody/problems/2356-simulating-the-selection-of-a-state-with-given-probabilit...

3年以上 前

解決済み


String Array Basics, Part 2: Convert String Array to Cell Array; No Missing Values
<http://www.mathworks.com/help/matlab/characters-and-strings.html String array> and cell array are two types of containers for s...

3年以上 前

解決済み


Apply Function to Each Field of a Structure Array: Part 2
The builtin <http://www.mathworks.com/help/matlab/ref/structfun.html?=structfun structfun> applies a function handle to each fie...

3年以上 前

解決済み


Integer complexity (Large numbers)
Inspired by <http://www.mathworks.com/matlabcentral/cody/problems/42831-integer-complexity Problem 42831>, this problem aims to ...

3年以上 前

解決済み


Text processing - Help Johnny write a letter home from camp
Johnny overuses the word 'great'. Write a script that will help him with this and future letters. If a sentence contains more ...

3年以上 前

もっと読み込む