Community Profile

# ChrisR

Last seen: 1 giorno fa Attivo dal 2015

I teach courses in water resources and environmental fluid mechanics.

All

#### Content Feed

Visto da

Risolto

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

Risolto

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

3 giorni fa

Problema

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...

6 giorni fa | 0 | 3 risolutori

Risolto

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

Risolto

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

Risolto

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

Risolto

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

Risolto

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

Risolto

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

Risolto

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

Risolto

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

17 giorni fa

Risolto

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

Risolto

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

Risolto

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

21 giorni fa

Risolto

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

Risolto

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

Risolto

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

Risolto

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

Risolto

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

Risolto

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

Risolto

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

23 giorni fa

Risolto

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

Risolto

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

Risolto

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

Risolto

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

Risolto

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

Risolto

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