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Construcción de matrices a partir de vectores
Construye la matriz A=[1 2 2 1; 2 2 3 3;2 3 3 4; 1 3 4 4] utilizando los siguientes vectores. c=[1 2 3 4]; d=[2 3 4]; b...

6 years ago

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RIPEMD160 Hash
Generator the RIPEMD160 hash given an input string and output the hexadecimal RIPEMD160 hash. For example: Input='My name is...

6 years ago

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SHA256 Hashing
Conduct SHA256 hashing on a hexadecimal input to produce a 256-bit hexadecimal output. Example: hash = SHA256('aa') hash ...

6 years ago

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Portfolio diversification: choose your stocks !
we have the returns of 3 stocks for the last 4 years and we have to combine only 2 stocks that are less correlated. Example: ...

6 years ago

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Rate of event occurence: find percentiles of the distribution (for smallish rates)
*In this problem you need to find the 5th and 95th percentiles of a Poisson distribution defined by parameter _μ_ (the mean rate...

6 years ago

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RISK Calculator - Large Armies, High Accuracy, Fast
This Challenge is to quickly provide the high precision probability of legal RISK battles up to 100 vs 100. [ Attack >= 2 and D...

6 years ago

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Solve the picross! (Easy)
Solve the picross! <http://en.wikipedia.org/wiki/Nonogram> The arguments (horz and vert) are cells containing the clues, e...

6 years ago

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Word Ladder
Given a set of words, and two other words - start and destination, Find the smallest chain from start to the destination such...

6 years ago

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Box
Give the volume of a box, x is equal to the body diagonal.

6 years ago

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Simple Matrix
Make the following matrix without typing it in one by one. [1 2 3; 2 4 6; 4 8 12] x=[1 2 3].

6 years ago

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Minimal Path - 04
Given a matrix, find the minimal path sum from any cell in the left column and finishing in any cell in the right column. You...

6 years ago

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Minimal Path - 03
Given a matrix, find the minimal path sum from the top left to the bottom right corner. Now you can move up, right & down. ...

6 years ago

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String count
given a string 'str', count the number of the followings - * letters * digits * white space * capital letters * smal...

6 years ago

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Find an optimal placement of coolers on a grid
In a certain chemical plant, 6 new pieces of cooling equipment (coolers) are to be installed in a vacant space. This vacant spac...

6 years ago

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Spiral Out - 02
An array is given. Convert it into a spiral matrix. For example, a=1:27; out=[21 22 23 24 25 26 20 ...

6 years ago

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Spiral Out - 01
Create a spiral matrix ( clock-wise direction ) of size n. Try to do that without using the built-in function.

6 years ago

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Don't be Too Greedy!!
Refer to the prev problem <https://www.mathworks.com/matlabcentral/cody/problems/45450-don-t-be-too-greedy> For this time, ca...

6 years ago

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Don't be Too Greedy!
Refer to the prev problem <https://www.mathworks.com/matlabcentral/cody/problems/45416-don-t-be-greedy> A list of assignments...

6 years ago

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Most Frequent Word - 01
Given a document file or a character array, find out the most frequent word in that document. In the case of multiple words -...

6 years ago

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La derivada numérica
El concepto de pendiente o inclinación de una función recta es muy intuitivo para cualquier persona. Desde el punto de vista mat...

6 years ago

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Nash Equilibrium
In game theory, a player's *strategy* is any of the options that can be chosen in a setting where the pay-off depends not only o...

6 years ago

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Grazing-02
A cow is tied to an outside corner of a rectangular barn of size (a,b) with a rope of length l. What is the maximum area the cow...

6 years ago

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Kaggle: Reverse Game of Life - Zoo of Stills and Oscillators
<http://www.kaggle.com/c/conway-s-reverse-game-of-life Kaggle's Conway's Reverse Game of Life> contest inspires this Reverse Lif...

6 years ago

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PEMDAS test
Create the function that will return the following expression for x and y. <<https://i.ibb.co/RHWyzrv/Code-Cogs-Eqn-1.gif>> ...

6 years ago

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Generate n equally spaced "intervals" between -x and x
Given n and x, return a list of numbers (in ascending order) that divides the interval [-x x] into n equal-length intervals. ...

6 years ago

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Create a vector of the first n naturnal numbers
If n = 7, your program should return a vector y, where y = [1 2 3 4 5 6 7].

6 years ago

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Create logarithmically spaced values
Given three numbers a,b,n with b>a, create a vector y with n logarithmic spaced values between 10^a and 10^b. Thus, if a = -2, ...

6 years ago

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Element-wise vector product
Given two vectors x and y, compute their element-wise product z. Thus, if x = [1 3 5] and y = [0.5 -1 2], then z = [1*0.5...

6 years ago

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Vector raised to a power (element-wise)
Given a vector A and a number x, raise each element of the vector to the power of x. Thus, if A = [2 5 7 1] and x = 0.5, then ...

6 years ago

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Create a vector with n repeated values of a number x
If x=3 and n=7 then the vector y would be y=[3 3 3 3 3 3 3]

6 years ago