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Converting Decimal to Binary
Given a decimal number that may include a fractional component, convert it into binary representation. The numbers you are given...

12 years ago

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Community Problem 500!
In honor of this being the 500th Community problem, see if you can create a function that has a Cody size of 500. It can do any...

12 years ago

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Project Euler: Problem 9, Pythagorean numbers
A Pythagorean triplet is a set of three natural numbers, a b c, for which, a^2 + b^2 = c^2 For example, 3^2 + 4^2 =...

12 years ago

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Generalized N-Cards Problem
Preface: This is a generalized version of the problem I presented <http://www.mathworks.com/matlabcentral/cody/problems/271-n-ca...

12 years ago

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GJam 2011 Africa Qual A: Maximum Loop Size
This Challenge is derived from <http://code.google.com/codejam/contest/837485/dashboard GJam 2011 Africa: Closing the Loop>. Sma...

12 years ago

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Project Euler: Problem 7, Nth prime
By listing the first six prime numbers: 2, 3, 5, 7, 11, and 13, we can see that the 6th prime is 13. What is the Nth prime nu...

12 years ago

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New Cody Time-Out Time
Determine the New Cody Time-Out Time Consume the Maximum Possible Time without Timing out. *Score:* 60 (sec) - Time (sec) ...

12 years ago

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chirp again
rise frequency linearly from 0 to frequency f in 1 second and fs samples, initial amplitude must rise smoothly like an aircraft ...

12 years ago

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Get the area codes from a list of phone numbers
Given a string of text with phone numbers in it, return a unique'd cell array of strings that are the area codes. s = '508-647...

12 years ago

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Word Counting and Indexing
You are given a list of strings, each being a list of words divided by spaces. Break the strings into words, then return a maste...

12 years ago

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Twist 'n' Match
Given n and m, construct an n-by-n matrix a such that a, when rotated 90 degrees and compared with itself, matches itself in exa...

12 years ago

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Max index of 3D array
Given a three dimensional array M(m,n,p) write a code that finds the three coordinates x,y,z of the Maximum value. Example ...

12 years ago

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Array ex-OR
There are in MATLAB logical functions such as _<http://www.mathworks.co.uk/help/matlab/ref/and.html and>,_ _<http://www.math...

12 years ago

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Functionality 1
It's all about functionality. *Cheating is allowed but not required*

12 years ago

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Top of the Hour : Return from your routine within 1 second of the hour
*Top of the Hour* Submit your routine such that it returns to Cody after the hour and within 1 second of the hour. The tes...

12 years ago

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hanoi towers II
with 3 rods (1,2 & 3), the goal is to move a tower of n disks from rod #1 to rod #3. You can move disks only one by one, on the...

12 years ago

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Mechanical Advantage of a Gear Train
Calculate the mechanical advantage of a gear train. The mechanical advantage of a gear couple is given by MA = T_o/T_i where ...

12 years ago

Solved


Temperature Conversion Utility
There are a few problems on Cody regarding temperature conversion (C to K, C to F, F to C), but none include Rankine. Furthermor...

12 years ago

Solved


speed vs size
The given string describes some MATLAB expressions such as 'pause(1)'. Compute its performance score = code size + run time in m...

12 years ago

Solved


Find names/words that start and end with the same letter.
Find names/words (from a string) that start and end with the same letter. * Case-insensitive. * If a name/word is not at the...

12 years ago

Solved


Closely related?
Given a function past_records() that will report blood sugar level of two twin brothers some random number of days ago. For exam...

12 years ago

Solved


Gambler?
Given a handle to a wealth function, confirm within 100 milliseconds 'Millionaire', 'Likely', or 'Gambler', if wealth() returns ...

12 years ago

Solved


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...

12 years ago

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Rank of magic square (for beginners)
Compute the rank r of a magic square of order n WITHOUT rank and magic functions.

12 years ago

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Raise Matrix to Power
For a given square matrix x and scalar a, find x^a without using '^' or 'mpower'.

12 years ago

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Get ranks of values in a vector
For a given vector, say [6 3 8 2], return the ranks (ascending) of observations, i.e. [3 2 4 1]. Do not worry about tied ranks. ...

12 years ago

Solved


Phoneword Translator
Given an alphanumeric telephone number (Ex. 1-800-COLLECT), return the purely numeric phone number as a vector. This problem use...

12 years ago

Solved


Filter values in a vector
Cody often benefits from a functional style of programming. For example, your score is often better when you compose multiple fu...

12 years ago

Solved


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...

12 years ago

Solved


Count letters occurence in text, specific to words with a given length.
Build a function with two input arguments: a string and a word length (number of letters), that outputs a vector of counts of th...

12 years ago

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