William
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Semi-retired physicist with interests in numerical modeling and mathematics.
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VALUTAZIONE MEDIA
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0 Punti principali
NUMERO MEDIO DI LIKE
Feeds
Risolto
List the ways to write 1/n as the sum of two unit fractions
Cody Problem 59841 involved counting the ways that can be written as the sum of two unit fractions (those with a numerator of 1...
3 giorni fa
Risolto
Count the ways to write 1/n as the sum of two unit fractions
The number 1/2 can be written as 1/3+1/6 and 1/4+1/4, and the number 1/9 can be written as 1/18+1/18, 1/12+1/36, and 1/10+1/90. ...
3 giorni fa
Risolto
List the segmented numbers
The sequence of segmented numbers begins 1, 2, 4, 5, 8, 10, 14, 15, 16. Notice that none of the terms is the sum of consecutive ...
3 giorni fa
Risolto
Out-of-Place Elements Count
Determine the number of elements in a list of integers that are not in their original order after sorting the list in ascending ...
3 giorni fa
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Determine if the square root is an integer.
Write code that returns true if perfect square and returns false if square root is not an integer.
5 giorni fa
Risolto
Calculate the Area of the Ring
You have Ring which consist of inner and outer Circles with Radius r and R which are not given but you'll be given Hprizontal ...
10 giorni fa
Risolto
Determine whether a number is a Gaussian prime
A Gaussian prime is a number that cannot be factored. For example, is not a Gaussian prime because it can be factored as the p...
10 giorni fa
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Sequencing Odd Even numbers
Given an input value n, create a vector which contains all odd numbers & even numbers centered around mean of vector. If the me...
10 giorni fa
Risolto
Extract Increasing Integers from Digit String
Given a string containing only digits, the function get_integers should return the list of increasing integers obtained by readi...
15 giorni fa
Risolto
Matrix Rotation
Write a MATLAB function that rotates a given matrix by 90 degrees clockwise. The rotation should be performed in-place, without ...
15 giorni fa
Risolto
Palindrome Checker
Create a MATLAB function that checks whether a given string is a palindrome or not. A palindrome is a word, phrase, number, or o...
15 giorni fa
Risolto
Sun angle
Determine the angle of the sun above the horizon based on the time of day. Assumptions: the sun rises in the East at 6h00, cor...
16 giorni fa
Risolto
Replace with Lower
Given a list of integers, for each element, replace it with the minimum integer found in the sub-list to its strict right (exclu...
16 giorni fa
Risolto
Sort by absolute value
Given a list of numbers, arrange them in ascending order based on their absolute values. For example, for the list [-30, -5, 1...
16 giorni fa
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Limiting Element Occurrences
You are given a list 'v' of numbers. This list may contain repeated numbers. Your objective is to create a new list that maintai...
16 giorni fa
Risolto
Complete a geometric sequence
In Cody Problem 59786 minnolina asks us to find the integer that completes a randomly sorted arithmetic sequence with one missin...
16 giorni fa
Risolto
Available ingredients + recipe -> number of cakes
Write a function Egg_Milk_Sugar(L, recipe) to determine the maximum number of cakes that can be prepared given a list of availab...
17 giorni fa
Risolto
Compress list
Given a non-empty list L of positif integers, compress the list so that only one occurrence is retained if two (or more) equal e...
17 giorni fa
Risolto
Digits eliminate
Complete the function my_f(n,b) to return, for a given integer, the number obtained by removing the digits '0' and 'b'. If there...
17 giorni fa
Risolto
Leader
An element of a list is called a "leader" if every element to its right (and not just the one immediately to its right) is stric...
17 giorni fa
Risolto
Missing Number
Given a list of integers forming an arithmetic progression (where the difference between consecutive elements is constant), your...
17 giorni fa
Risolto
Pivot index
Let L be a vector of numbers. We are searching for the index n of the pivot element defined as follows: the dot product of the e...
18 giorni fa
Risolto
Counting the occurrences of a digit in a book
The printer has printed a book with 'p' pages. How many times did they use the character 'd'? In other words, how many times doe...
18 giorni fa
Risolto
Determine if a Digit is Isolated
A digit is considered isolated if both its left and right neighbors are different from itself. For example, in the number 776444...
18 giorni fa
Risolto
Merge two integers
We want to merge the digits of two integers having the same number of digits to obtain a new integer whose digits are obtained b...
18 giorni fa
Risolto
finding vector pair with min angle between them
given a matrix with more than one row , compare row vectors of the given matrix and find the pair with the minumum angle between...
20 giorni fa
Risolto
Calculating distance of lightning based on time delay
If we know the time delay between when we see lightning and hear thunder then we can calculate approximate distance(in meters) o...
25 giorni fa
Risolto
Express numbers as the sum of a prime, a square, and a cube
While traveling on an interstate highway, I noticed a sign that gave distances to three places. The distances were 3, 8, and 9 m...
circa un mese fa
Risolto
Solve an ODE: Ekman spiral on a solid surface
Problem Write a function to solve for and as a function of in this system of ordinary differential equations: where , ...
circa un mese fa
Risolto
Find the minimum element coprime to the rest in a set of 10 consecutive integers
In this video, Dr Barker argued that a set of 10 consecutive integers must have at least one integer coprime to the rest. For ex...
circa un mese fa