Problem

jogging?
Imagine x-y coordinate system and you are at the origin and your partner is on the x-axis at some small distance (d) away from y...

14 years ago | 2 | 40 solvers

Solved

Maintain shape of logical-index mask
When using logical indexing into an array, MATLAB returns a vector output. For example, if A = magic(3); mask = logi...

14 years ago

Solved

Valid Chess Moves
Using <http://en.wikipedia.org/wiki/Algebraic_chess_notation standard Algebraic notation> ('' for a pawn), given previous move a...

14 years ago

Solved

jogging?
Imagine x-y coordinate system and you are at the origin and your partner is on the x-axis at some small distance (d) away from y...

14 years ago

Solved

Kaprekar numbers
Test if the input is a Kaprekar number: <http://mathworld.wolfram.com/KaprekarNumber.html>. Return a logical true or false. ...

14 years ago

Solved

Woodall number
Test whether the input is a Woodall number: <http://en.wikipedia.org/wiki/Woodall_number> _Please do not cheat by simply chec...

14 years ago

Solved

Back to basics 18 - justification
Covering some basic topics I haven't seen elsewhere on Cody. Given a string with extra spaces in front and/or in back, return...

14 years ago

Solved

Toolbox check part 3
In my ongoing quest to highlight obscure parts of MATLAB, the latest challenge is to take 2 string inputs, one a MATLAB toolbox ...

14 years ago

Solved

Convert Hard Drive marketing sizes to actual data sizes
Hard drive sizes are typically marketed using the decimal meaning of prefixes, whereas RAM uses binary meanings. For example: ...

14 years ago

Solved

Convert Roman to Arabic Numerals
Based upon what I see on tv and at the movies, the use of Roman numerals indicates something is important or sophisticated (e.g....

14 years ago

Problem

ranch area?
Your friend has a ranch with four distinct boundary lines. Three boundary lines are ideal straight roads: (1) North Club Road, (...

14 years ago | 1 | 51 solvers

Solved

ranch area?
Your friend has a ranch with four distinct boundary lines. Three boundary lines are ideal straight roads: (1) North Club Road, (...

14 years ago

Solved

Back to basics 19 - character types
Covering some basic topics I haven't seen elsewhere on Cody. Return the number of punctuation characters in the input variabl...

14 years ago

Solved

Better bullseye matrix
<http://www.mathworks.com/matlabcentral/cody/problems/18-bullseye-matrix Problem 18> asks to create a bullseye matrix like this:...

14 years ago

Solved

Back to basics 2 - Function Path
Covering some basic topics I haven't seen elsewhere on Cody. Given a string that is the name of a MATLAB function, return a s...

14 years ago

Solved

Trickier Timing
You solution should return control to main program only when the current time ends in either a 5 or 0 (e.g. the current seconds ...

14 years ago

Solved

7 segment LED display
Given a whole number, output how many segments would be lit up to display it on a 7 segment LED display (http://en.wikipedia.org...

14 years ago

Solved

Back to basics 21 - Matrix replicating
Covering some basic topics I haven't seen elsewhere on Cody. Given an input matrix, generate an output matrix that consists o...

14 years ago

Solved

Back to basics 15 - classes
Covering some basic topics I haven't seen elsewhere on Cody. Return the class of the input variable.

14 years ago

Solved

Back to basics 13 - Input variables
Covering some basic topics I haven't seen elsewhere on Cody. Return as a string the name of the input variable to the functio...

14 years ago

Solved

Back to basics 23 - Triangular matrix
Covering some basic topics I haven't seen elsewhere on Cody. Given an input matrix, return a matrix with all elements above a...

14 years ago

Solved

Back to basics 22 - Rotate a matrix
Covering some basic topics I haven't seen elsewhere on Cody. Rotate the input matrix 90 degrees counterclockwise (e.g. [1 2; ...

14 years ago

Solved

Back to basics 5 - Clipboard
Covering some basic topics I haven't seen elsewhere on Cody. Copy the input string to the clipboard

14 years ago

Solved

Back to basics 4 - Search Path
Covering some basic topics I haven't seen elsewhere on Cody. Return a string that is the user's portion of the current search...

14 years ago

Solved

Back to basics 17 - white space
Covering some basic topics I haven't seen elsewhere on Cody. Remove the trailing white spaces from the input variable

14 years ago

Solved

Back to basics 15 - Benchmark
Covering some basic topics I haven't seen elsewhere on Cody. Return an array of the benchmark values for MATLAB.

14 years ago

Solved

Back to basics 3 - Temp Directory
Covering some basic topics I haven't seen elsewhere on Cody. Return a string that is the path to the system's current temp di...

14 years ago

Solved

Specific toolboxes
Given a string that is the name of a MATLAB toolbox, return true if it is available on the Cody solvers evaluation system, false...

14 years ago

Solved

Number of toolboxes?
Return a number equal to the number of toolboxes available to the Cody solvers.

14 years ago

Solved

Circumscribed circles
Given the lengths of the 3 sides of a triangle, output the radius of the circumscribed circle. Example: [3 4 5] -> 2.5

14 years ago