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MATLAB Central Community 20 Year Anniversary Mini Hack participant badge
Awarded to David Hill on 11 Nov 2021
MATLAB Central Community 20 Year Anniversary Treasure Hunt participant badge
Awarded to David Hill on 14 Sep 2021
Contribute at least one answer each month for 36 consecutive months
Awarded to David Hill on 02 Aug 2022
Solve all the problems in Strings II
Awarded to David Hill on 23 Jul 2024
Solve all the problems in R2016b Feature Challenge
Awarded to David Hill on 23 Jul 2024
Your submissions were downloaded 250 or more times in a month
Awarded to David Hill on 01 Dec 2021
Your submissions received 10 five star ratings
Awarded to David Hill on 02 Oct 2021
Solve all the problems in Cody Challenge
Awarded to David Hill on 23 Jul 2024
Solve all the problems in Matrix Patterns III problem group
Awarded to David Hill on 22 Jul 2024
Solve all the problems in Indexing I
Awarded to David Hill on 03 Jul 2023
Solve all the problems in ASEE Challenge
Awarded to David Hill on 03 Jul 2023
Feeds
Solved
Complete hydraulic geometry relations
Hydraulic geometry relations express the velocity , width , and depth of a river as a function of the discharge (or flow) , whi...
14 days ago
Solved
Determine whether a number is a Ludic prime
Ludic numbers are formed by a sieve. Start with a list of the positive integers. Skip 1 and start with 2. Then delete every seco...
1 month ago
Solved
Find the closest canyon prime
My wife and I celebrated our honeymoon and most recent anniversary in Yellowstone and Grand Teton National Parks. After returnin...
1 month ago
Solved
Sum along each diagonal of a matrix
Write a routine that returns the sums along the diagonals of a given matrix, A, where the first diagonal is the bottom left corn...
2 months ago
Solved
TingTing
Output logical "true" if the input is the answer to luck and money$$$. Otherwise, output logical "false".
2 months ago
Solved
Condition number of Kronecker product
Given NxN matrix A and MxM matrix B, where M,N<=1000, write a routine to compute the condition number of kron(A,B).
2 months ago
Solved
List composite numbers that do not contain their prime factors as substrings
The number 63 has the prime factorization 3, 3, and 7, and it contains one of them (3) as a substring. In contrast, the number 4...
2 months ago
Solved
List Ormiston prime pairs
The numbers 1913 and 1931 form the first Ormiston prime pair. The numbers are consecutive primes, and they are anagrams of each ...
2 months ago
Solved
List the partitions of an integer
Several Cody problems deal with partitions of an integer, or the ways an integer can be written as the sum of positive numbers—...
2 months ago
Solved
Area of a rectangle
FInd the area of a rectangle with a length L and width W. Round to the nearest integer.
2 months ago
Solved
Compute the dispersion coefficient
A contaminant dumped or spilled into a river will move downstream with the flow, but it will also spread in the flow direction b...
2 months ago
Solved
Describe n from right to left
If you were to describe the number 46 from right to left, you could say “one 6, one 4”, or 1614. The number 8663 would be “one 3...
3 months ago
Solved
Extend the digamma function to negative arguments
While solving one of Ramon Villamangca’s problems, I needed the value of , where is the digamma function. However, MATLAB’s fun...
3 months ago
Solved
Find out if the given number is a square of natural number.
For example , Input =4,output =1 Input=1,output=1 Input=0,output=0 Input=8,output=0
3 months ago
Solved
Bit Stream conversion to Audio Frequency Shift Key using Bell 202 (Modem)
Convert a character binary bit-stream transmitted at a certain baud-rate into an audio stream using Audio Frequency Shift Key (A...
3 months ago
Solved
Moyenne pondérée
Ecrire une fonction qui prend en entrée un vecteur P et un vecteur V et calcule la moyenne pondérée MP des élements vi d'un vec...
3 months ago
Problem
Bit Stream conversion to Audio Frequency Shift Key using Bell 202 (Modem)
Convert a character binary bit-stream transmitted at a certain baud-rate into an audio stream using Audio Frequency Shift Key (A...
3 months ago | 0 | 1 solver
Solved
Explore the twin prime Goldbach conjecture
The Goldbach conjecture says that every positive even integer greater than 2 can be expressed as the sum of two prime numbers in...
3 months ago
Solved
Find the Final State of an Abelian Sandpile
Let us define an <http://nautil.us/issue/23/dominoes/the-amazing-autotuning-sandpile Abelian sand pile> as a matrix that is only...
4 months ago
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