ChrisR

Last seen: Today

3,068 total contributions since 2015

I teach courses in water resources and environmental fluid mechanics.

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Solved

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...

1 hour ago

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Wheat on a chessboard pt 2
If a chessboard were to have wheat placed upon each square such that x grains were placed on the first square and each successiv...

3 hours ago

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Is this date a palindrome?emordnilap a etad siht sI
Take a MATLAB date number as input, and return true if the date is a palindrome, false if the date is not a palindrome. A date ...

4 hours ago

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Calculate correlation.
There are two data. y1=[0 1 2 3 4]' y2=[2 3 4 5 6]' We can see positive relationship between y1 and y2. The relations...

5 hours ago

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Create a function handle that reverses the input arguments of another function handle
Given a function that takes two input arguments and returns one output, create another function handle that performs the same op...

22 hours ago

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Determine if input is even

22 hours ago

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MATLAB Counter
Write a function f = counter(x0,b) to construct a counter handle f that counts with an initial value x0 and a step size b. E...

22 hours ago

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Breaking Out of the Matrix
Do you want to take the Red Pill, or the Blue Pill? If you take the Blue Pill, you will simply pass along to the next problem...

2 days ago

Problem

Add 100

3 days ago | 1 | 4 solvers

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The shortest man in the world

3 days ago

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An asteroid and a spacecraft
&#128640 Imagine a non-relativistic simple situation. Assume positions p0, p1, p2, and p3 are three dimensional Cartesian ...

4 days ago

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Combination logic
Create an algorithm in MATLAB that calculate the combination for the given positive integers n and k as inputs. When k > n, the ...

4 days ago

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drowsy?
This dog() may be drowsy or function immediately when you call, return 1 or 0 accordingly within 2/10 second.

4 days ago

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remove every row&col for every nan
for a given matrix, remove the row and column of every nan. Example x=[1 2 NaN 4 5 6 7 8 ...

4 days ago

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Check if two matrices are permutations of each other
Your function should return true for the elements of one matrix is the permutation of the other matrix: x = [1 2 3; 4 5 6; ...

4 days ago

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Writing Error Messages
Well written functions check inputs to make sure the input is valid. The function ErrorCheck takes three arguments: * a - a s...

4 days ago

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Back to basics 24 - Symbolic variables
Covering some basic topics I haven't seen elsewhere on Cody. Given a string algebraic expression, return the symbolic variabl...

4 days ago

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Sums of Distinct Powers
You will be given three numbers: base, nstart, and nend. Write a MATLAB script that will compute the sum of a sequence of both ...

4 days ago

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Hangman (easy)
What is the best letter to start a <http://en.wikipedia.org/wiki/Hangman_(game) hangman> game with? You are given a cell arra...

4 days ago

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Tic-Tac-Logic - Solution Checker
<http://www.conceptispuzzles.com/index.aspx?uri=puzzle/tic-tac-logic/rules Tic-Tac-Logic> is a logic puzzle wherein a rectangula...

4 days ago

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Radiation Heat Transfer — View Factors (4)
View factors (aka configuration factors) are utilized in some radiation heat transfer models to estimate heat transfer rates bet...

5 days ago

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Radiation Heat Transfer — View Factors (1)
View factors (aka configuration factors) are utilized in some radiation heat transfer models to estimate heat transfer rates bet...

5 days ago

Solved

Radiation Heat Transfer — View Factors (3)
View factors (aka configuration factors) are utilized in some radiation heat transfer models to estimate heat transfer rates bet...

5 days ago

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Similar triangles

5 days ago

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Normalizing a vector

5 days ago

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Highest building

5 days ago

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End Digits