I'm a Senior UX Specialist here at MathWorks, supporting the MATLAB Language teams. This means any coding I do is strictly amateur stuff, and my comments should NOT be considered the "voice of the MathWorks".

In a past life, I got a doctorate analyzing how people talk and work together via computers, and have worked on planning- and AI-related projects for various government sponsors.

Professional Interests: Programming language design and environments; ethnographic analysis; data visualization; NLP; audio processing; image processing.

Hobbies: writing science fiction; role-playing; wargaming; music.

Solved

"Cody" * 5 == "CodyCodyCodyCodyCody"

*Alice*: What? *"Cody" * 5 == "CodyCodyCodyCodyCody"*? You've gotta be kidding me! *Bob*: No, I am serious! Python supports...

3 years ago

Solved

Number of Even Elements in Fibonacci Sequence

Find how many even fibonacci numbers are available in the first d numbers. Consider the following first 14 numbers 1 1 2...

3 years ago

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adding huge numbers

Write function called huge_add that adds together two positive integers of any length specified as char vectors using decimal n...

3 years ago

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Weighted average

Given two lists of numbers, determine the weighted average. Example [1 2 3] and [10 15 20] should result in 33.333...

3 years ago

Problem

Create a recurrence matrix for a vector of data

In <https://en.wikipedia.org/wiki/Conversation_analysis conversation analysis>, it's often useful to track the contributions fro...

8 years ago | 2 | 14 solvers

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Create a recurrence matrix for a vector of data

In <https://en.wikipedia.org/wiki/Conversation_analysis conversation analysis>, it's often useful to track the contributions fro...

8 years ago

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Swap the first and last columns

Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All oth...

8 years ago

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Column Removal

Remove the nth column from input matrix A and return the resulting matrix in output B. So if A = [1 2 3; 4 5 6]; and ...

8 years ago

Question

Shifting a multidimensional matrix

I'm trying to offset a matrix by a certain distance, like dragging an image partially out of frame. The 'new' area gets fill...

8 years ago | 4 answers | 0

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Sum all integers from 1 to 2^n

Given the number x, y must be the summation of all integers from 1 to 2^x. For instance if x=2 then y must be 1+2+3+4=10.

8 years ago

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How many monitors are connected ?

How to obtain the numbers of monitors connected to your computer ?

8 years ago

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The Hitchhiker's Guide to MATLAB

Output logical "true" if the input is the answer to life, the universe and everything. Otherwise, output logical "false".

8 years ago

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Functional inputs

Return an n-dimensional array whose elements are the results of a function over a set of vectors. The (i,j,k, ...n)th element...

8 years ago

Problem

Functional inputs

Return an n-dimensional array whose elements are the results of a function over a set of vectors. The (i,j,k, ...n)th element...

8 years ago | 1 | 14 solvers

Problem

"Look and say" sequence

What's the next number in this sequence? * [0] * [1 0] * [1 1 1 0] * [3 1 1 0] * [1 3 2 1 1 0] This a variant on the w...

8 years ago | 0 | 144 solvers

Question

How can I show a time/date stamp in the prompt?

I am recording (using diary) some work in MATLAB and I want to see when each command was executed. Is there a way to change the ...

8 years ago | 1 answer | 0

Solved

Is my wife right? Now with even more wrong husband

Again, as in "Is my wife right?" ( <http://www.mathworks.com/matlabcentral/cody/problems/149-is-my-wife-right> ), answer 'yes' r...

8 years ago

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The Goldbach Conjecture

The <http://en.wikipedia.org/wiki/Goldbach's_conjecture Goldbach conjecture> asserts that every even integer greater than 2 can ...

8 years ago

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Most nonzero elements in row

Given the matrix a, return the index r of the row with the most nonzero elements. Assume there will always be exactly one row th...

8 years ago

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Create times-tables

At one time or another, we all had to memorize boring times tables. 5 times 5 is 25. 5 times 6 is 30. 12 times 12 is way more th...

8 years ago

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Determine whether a vector is monotonically increasing

Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...

8 years ago

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Determine if input is odd

Given the input n, return true if n is odd or false if n is even.

8 years ago

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Make a checkerboard matrix

Given an integer n, make an n-by-n matrix made up of alternating ones and zeros as shown below. The a(1,1) should be 1. Example...

8 years ago

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Find the sum of all the numbers of the input vector

Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

8 years ago

Problem

Construct a string from letters and counts

Given two input arrays like this: [5,3,1] ['a','b','c'] Output a string that contains each letter the specified num...

8 years ago | 0 | 121 solvers

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Pangrams!

A pangram, or holoalphabetic sentence, is a sentence using every letter of the alphabet at least once. Example: Input s ...

8 years ago

Solved

Sort a list of complex numbers based on far they are from the origin.

Given a list of complex numbers z, return a list zSorted such that the numbers that are farthest from the origin (0+0i) appear f...

8 years ago

Solved

Construct a string from letters and counts

Given two input arrays like this: [5,3,1] ['a','b','c'] Output a string that contains each letter the specified num...

8 years ago