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Knights and Knaves (part 2)
_This is a Matlab adaptation of the_ <http://en.wikipedia.org/wiki/Knights_and_Knaves Knights and Knaves> _logical puzzles_. ...

8 years ago

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Knights and Knaves (part 1)
This is a Matlab adaptation of the <http://en.wikipedia.org/wiki/Knights_and_Knaves Knights and Knaves> logical puzzles. You ...

8 years ago

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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...

8 years ago

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Handle to an array of functions
Given a cell array of functions that operate on scalars, it is required to return a function handle to process a vector of value...

8 years ago

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Equal temperament - musical notes and frequency
Starting from 440Hz note (musical note A above middle C), create 13 notes, using twelve-tone equal temperament, in Herz units. ...

8 years 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 ...

8 years ago

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Convert single-precision floating-point number to binary representation
Write a function which takes a scalar <http://en.wikipedia.org/wiki/Single-precision_floating-point_format single-precision floa...

8 years ago

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Xor of matrix
you have to set exclusive OR of two arrays

8 years ago

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convert?
* Given a string containing a number followed by pounds or kgs, for example: * 'Billy lost 22 pounds in four weeks.' * 'Maria ...

8 years ago

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Best Problem Elections
When I am writing those words, there are 2002 problems on Cody. Many of them are simply wonderful. Do you remember which of them...

8 years ago

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Aztec Diamond Domino Tilings
Consider a Cartesian grid, with verteces at integer x and y values, where every four vertices around a vacant space define a uni...

8 years ago

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You never ask a lady her age
Instead you ask her to multiply her age by 10, then subtract any of the first nine multiples of 9 (9,18,...,81), and tell you th...

8 years ago

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Damping of Servomotors with Tachometer Feedback
In Control Engineering, servomotors with tachometer feedback can be modeled by the second order system K / [J*s^2 + (B + K*K...

8 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...

8 years ago

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Let's Make A Deal: Criminal Minds
The game of Let's Make A Deal proceeds as follows; The player is given the choice of three doors: Behind one door is a car; b...

8 years ago

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Exponents in Factorials(hard)
This is problem is a harder version of "Problem 44747. Exponents in Factorials". <https://ww2.mathworks.cn/matlabcentral/cody/p...

8 years ago

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Exponents in Factorials
It's time to get excited about numbers!!! Well, we're just dealing with factorials here, but it's still a good reason to get ex...

8 years ago

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Amicable numbers
Test whether two numbers are <https://en.wikipedia.org/wiki/Amicable_numbers amicable>, meaning that the sum of the proper divis...

8 years ago

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GJam: 2013 Rd1a Bullseye Painting
<http://code.google.com/codejam/contests.html Google Code Jam> 2013 Round 1a Bullseye challenge is to determine how many full ri...

8 years ago

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Days until next NewYear ball drop
Given a date string in the form 'yyyy-mm-dd' or 'yyyy-mm-dd hh:mm:ss', calculate the number of *days* until the dropping of the ...

8 years ago

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Find my birthday
Given a birth date x, find my age when my birth day will fall on the same day as I was born. So if I was born on Monday, what a...

8 years ago

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calculate the day of the year from a date string.
'09-Oct-2016' is the 283rd day of the year. So doy = dayoftheyear('09-Oct-2016') should return doy = 283

8 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...

8 years ago

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birthday on same day of week
Say, Mr. X's birthday is on 20th July, 2014. It was Sunday. Determine the closest year when his birthday will again be on Sunday...

8 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...

8 years ago

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Friday the 13th
According to superstition, lots of unpleasant stuff happens on Friday the 13th, so you might like to find the next occurence of ...

8 years ago

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Find Month & day for given day number of a year
Find Month & day for given day number of a year (day number is any number ranging from 1 to 366)

8 years ago

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Create a Cell array of month-end date strings within a provided date range
This is a variation of <http://www.mathworks.com/matlabcentral/cody/problems/1039-get-an-array-of-month-ends-in-a-date-range Get...

8 years ago

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Create a Cell array of month-end date strings within a date range
This is a variation of <http://www.mathworks.com/matlabcentral/cody/problems/1039-get-an-array-of-month-ends-in-a-date-range Get...

8 years ago

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Get an array of month-ends in a date range
Create a function that would return a list of month-ends falling in a given date range. If a start date or end date falls on a...

8 years ago