ChrisR

Last seen: 1 giorno fa | Attivo dal 2015

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I teach courses in water resources and environmental fluid mechanics.

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Compute the average precipitation for a watershed using the Thiessen polygon method
Several methods are available for estimating the average precipitation for a watershed from a few observations at rain gauges. T...

3 giorni fa

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Generate Hadamard Matrix
In mathematics, a Hadamard matrix, named after the French mathematician Jacques Hadamard, is a square matrix whose entries are e...

3 giorni fa

Problema

6 giorni fa | 0 | 3 risolutori

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Is this triangle right-angled (mixed sides)?
Implement function returning if triangle is right angled or not? Input argument is vector row with not ordered triangle sides. ...

6 giorni fa

Problema

Compute frequency factors for the normal distribution
In frequency analysis in hydrology, the streamflow corresponding to a specified exceedance probability (or return period ) can...

8 giorni fa | 0 | 3 risolutori

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About jokes (and compression)
An argument can be made about jokes. The shorter they are, the funnier. Further explained here: https://en.wikipedia.org/wiki/Hu...

12 giorni fa

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Independent direction vectors of a plane
Given the equation of a plan of the form ax+by+cz=d, return 2 independent direction vectors which could e.g. be used to determin...

12 giorni fa

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Hermite Polynomials
Problem 1304 deals with Hermite polynomial of the physicist's type. In this problem, Return the n-th Hermite polynomial of the ...

16 giorni fa

Problema

Determine flows of given probability using empirical frequency analysis
Write a function that takes as input observations of peak streamflow and exceedance probabilities expressed as percentages an...

16 giorni fa | 0 | 4 risolutori

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Given a matrix X, manipulate it accordingly
Given a matrix X, 1st add a column to the matrix whose elements are the summation of each rows. Then add a row to the matrix who...

17 giorni fa

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Play with array Min-Max
An array is provided. For example, a= [ 2,1,11,4,5,13] Create an array from a like this way, out= [ 1,11,2,13,4,5] ➢ 1st take...

17 giorni fa

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Find alternating sum
Given an array, find alternating sum i.e. – y = x (1) – x (2) + x (3) – x (4) + x (5) - …

17 giorni fa

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Extract the prime numbers
Given a list of elements, extract the prime numbers from that array.

17 giorni fa

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An array is given that contains the marks received by a group of students in their class test. Find out the highest 3 marks received by the students?
An array is given that contains the marks received by a group of students in their class test. Find out the highest 3 marks rec...

19 giorni fa

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An array is given. Find the unique elements of the array. [keep the sequence unchanged]
An array is given. Find the unique elements of the array. [keep the sequence unchanged] For example if input x=[2 ,4 , 9 ,2 ,...

19 giorni fa

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Connect Four - 04
Previous Problem <https://www.mathworks.com/matlabcentral/cody/problems/45355-connect-four-03> In addition to the previo...

21 giorni fa

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Maya long Count
Given a Mayan date, calculate the number of days after the end of the last Great Cycle. <https://en.wikipedia.org/wiki/Maya_c...

21 giorni fa

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Connect Four - 03
Previous Problem <https://www.mathworks.com/matlabcentral/cody/problems/45354-connect-four-01> <https://www.mathworks.co...

22 giorni fa

Problema

Compute the area of the shoemaker’s knife
A shape resembling a shoemaker’s knife is constructed from a semicircle with diameter with two semicircular “bites” of diameter...

22 giorni fa | 1 | 8 risolutori

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Relative pose in 2D: problem 2
We consider a world reference frame denoted by {0} which has its x-axis pointing east and its y-axis pointing north. There is a ...

22 giorni fa

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Find the day for a date
Today's day and date will be given to you. By utilising that you need to find the day of the old date. (Date will be in DD/MM/YY...

23 giorni fa

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The End of the World
given a date -- represent it in the Maya long count system. <https://en.wikipedia.org/wiki/Maya_calendar> <https://maya.nm...

23 giorni fa

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Integer vector optimal lossless deduplication
You're given an integer vector A, a Min scalar and a Max scalar. You can assume all elements in A are in [Min,Max] range, and nu...

23 giorni fa

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Lost days
Given two dates in a particular format, calculate the difference between them.

23 giorni fa

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Day counter function
Write a function called _day_counter_ that returns the number of Mondays that fell on the first day of the month in a given year...

23 giorni fa

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Area-05
The dimension of a rectangle is given. There are two circles of equal size that are inscribed inside it.The circles are tangent ...

24 giorni fa

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Repeatitive Summation
Given numeric vectors x, a and b, perform the following operation - a represents a vector of numbers and b represents a vector ...

24 giorni fa

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Area-04
The dimension of a rectangle is given. There are two circles of equal size that are inscribed inside it.The circles are tangent ...

25 giorni fa

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Area-03
There are two circles of equal size are inscribed inside a square. They are tangent to each other. <https://serving.photos.ph...

25 giorni fa

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Area-07
This is a follow up of the problem <https://www.mathworks.com/matlabcentral/cody/problems/45341-area-06> in this case, fi...

25 giorni fa

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ChrisR

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