Problem

Kurchan 4x4 - Optimal score
Related to Problem 1646, but bigger. Technically, all you need to do for this Cody problem is input a 4x4 matrix containing the...

12 years ago | 2 | 43 solvers

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Ulam spiral 2: The revenge
Starting from the problem <https://www.mathworks.com/matlabcentral/cody/problems/2644-the-ulam-matrix>, transform the Ulam Matri...

12 years ago

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The Ulam Matrix
The Ulam spiral is simple to describe. On a gridded piece of paper, write down the number 1. Then write successive integers as y...

12 years ago

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Unique: Enhanced Performance - Avoiding Memory Crash
The Challenge is to create the unique array for a long and wide array. Difficulties are that the normal unique(a,'rows') func...

12 years ago

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expand intervals vol.2
Similar to problem <http://www.mathworks.co.uk/matlabcentral/cody/problems/2528 2528>. This is a more general case, when bounds ...

12 years ago

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How Many Months Until It's Today Again?
Given a particular date, calculate how many months must pass before that same day of the month occurs on the same day of the wee...

12 years ago

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Unique - Very Very Large Numbers
Given a vector column, with some very large numbers, create the ascending sort and unique vector. *Input:* A (column vector)...

12 years ago

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How unique?
Sometimes, when we check unique entries of vector we would like to know how many times each value occurs. Given vector of num...

12 years ago

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Implement full adder circuit
Implement full adder circuit as given in <http://en.wikipedia.org/wiki/Adder_(electronics)> Inputs signals are a, b and ...

12 years ago

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[Thermodynamics] Estimate boiling point of n-alkanes
Estimate the boiling point (in Kelvin) of n-Alkanes (n >= 2) using the group contribution method of Joback --- ...

12 years ago

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Higher! Lower!
My kids have started to play the "I'm thinking of a number between X and Y" game in the car on trips to and from their swim less...

12 years ago

Problem

Higher! Lower!
My kids have started to play the "I'm thinking of a number between X and Y" game in the car on trips to and from their swim less...

12 years ago | 3 | 41 solvers

Solved

Variable Assignment
Complete the ? part by assigning myExamScore with 100.

12 years ago

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Smallest and Largest Real Numbers
Complete the function by assigning minReal with the smallest positive double precision floating-point number, and maxReal with t...

12 years ago

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Flip the vector from right to left
Flip the vector from right to left. Examples x=[1:5], then y=[5 4 3 2 1] x=[1 4 6], then y=[6 4 1];

12 years ago

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Computing Wind chill
On a windy day, a temperature of 15 degrees may feel colder, perhaps 7 degrees. The formula below calculates the "wind chill," i...

12 years ago

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Case-insensitive Character Detection
Find the index of a particular character in a string ignoring case. Example Input: x = 'aAbhhfdf' n = 'a' ...

12 years ago

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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 - ...

12 years ago

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Mongean Shuffle : 2
Extension to problem 2479 ( <https://www.mathworks.com/matlabcentral/cody/problems/2479-mongean-shuffle> ) Determine the numb...

12 years ago

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Card Game
This is an overly simplified and highly modified version of card game Twenty-Nine. A deck of 100 unique cards (hypothetical) ...

12 years ago

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Genome decoding
Inspired by a question on the answer forum: You are given a matrix of 8-bit integers which encodes a genome. Each integer can...

12 years ago

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Polite numbers. Politeness.
A polite number is ans integer that sums of two or more consecutive nonnegative integers. Politeness of a positive integer is a...

12 years ago

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Numbers spiral diagonals (Part 2)
Inspired by Project Euler n°28 and 58. A n x n spiral matrix is obtained by starting with the number 1 and moving to the righ...

12 years ago

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Laguerre polynomials
Given an integer _n_ ≥ 0, generate the _n_-th <http://en.wikipedia.org/wiki/Laguerre_polynomials Laguerre polynomial>. *Ex...

12 years 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...

12 years ago

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Simple Past of Regular Verbs
Given a regular verb, return the simple past. Example Input verb = 'to work' Output simple_past = 'worked'

12 years ago

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How long until the weekend?
Write a function a that takes a date vector as an input and returns the number of hours until the weekend begins. The beginning...

12 years ago

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Find out the Gray Code for a Given Binary Number
Find out <http://en.wikipedia.org/wiki/Gray_code Gray Code> for a given binary number Example Binary input 1000 Gray ...

12 years ago

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Polite numbers. N-th polite number.
A polite number is an integer that sums of at least two consecutive positive integers. For example _7 = 3+4_ so 7 is a polite...

12 years 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...

12 years ago