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Nigel Davies


Last seen: 4달 전
118 2012 이후 총 참여 횟수

Software developer on embedded control and instrument system since 1983. Matlab user since 2000.

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Nigel Davies's 배지

  • Project Euler I
  • Revival Level 1
  • First Answer
  • Scavenger Finisher
  • Commenter
  • Solver

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해결됨


Encode Roman Numerals
Create a function taking a non-negative integer as its parameter and returning a string containing the Roman Numeral representat...

9달 전

해결됨


Read a column of numbers and interpolate missing data
Given an input cell array of strings s, pick out the second column and turn it into a row vector of data. Missing data will be i...

9달 전

해결됨


Project Euler: Problem 10, Sum of Primes
The sum of the primes below 10 is 2 + 3 + 5 + 7 = 17. Find the sum of all the primes below the input, N. Thank you <http:/...

9달 전

해결됨


Project Euler: Problem 9, Pythagorean numbers
A Pythagorean triplet is a set of three natural numbers, a b c, for which, a^2 + b^2 = c^2 For example, 3^2 + 4^2 =...

9달 전

해결됨


Project Euler: Problem 8, Find largest product in a large string of numbers
Find the greatest product of five consecutive digits in an n-digit number. 73167176531330624919225119674426574742355349194934...

9달 전

해결됨


Project Euler: Problem 7, Nth prime
By listing the first six prime numbers: 2, 3, 5, 7, 11, and 13, we can see that the 6th prime is 13. What is the Nth prime nu...

9달 전

해결됨


Project Euler: Problem 6, Natural numbers, squares and sums.
The sum of the squares of the first ten natural numbers is, 1^2 + 2^2 + ... + 10^2 = 385 The square of the sum of the first ...

9달 전

해결됨


Project Euler: Problem 5, Smallest multiple
2520 is the smallest number that can be divided by each of the numbers from 1 to 10 without any remainder. What is the smalle...

9달 전

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Project Euler: Problem 4, Palindromic numbers
A palindromic number reads the same both ways. The largest palindrome made from the product of two 2-digit numbers is 9009 = 91 ...

9달 전

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Project Euler: Problem 3, Largest prime factor
The prime factors of 13195 are 5, 7, 13 and 29. What is the largest prime factor of the number being input, input might be ui...

9달 전

해결됨


Project Euler: Problem 2, Sum of even Fibonacci
Each new term in the Fibonacci sequence is generated by adding the previous two terms. By starting with 1 and 2, the first 10 te...

9달 전

해결됨


Project Euler: Problem 1, Multiples of 3 and 5
If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9. The sum of these multiples is 23...

9달 전

해결됨


all possible subsets of set
Given a vector, return all possible subsets of the vector in a cell array. Properties of basic set theory is assumed to be valid...

9달 전

해결됨


Make the vector [1 2 3 4 5 6 7 8 9 10]
In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

4년 이하 전

해결됨


Bottles of beer
Given an input number representing the number of bottles of beer on the wall, output how many are left if you take one down and ...

7년 이상 전

해결됨


inner product of two vectors
inner product of two vectors

7년 이상 전

해결됨


radius of a spherical planet
you just measured its surface area, that is the input.

7년 이상 전

해결됨


Roll the Dice!
*Description* Return two random integers between 1 and 6, inclusive, to simulate rolling 2 dice. *Example* [x1,x2] =...

7년 이상 전

해결됨


Swap the input arguments
Write a two-input, two-output function that swaps its two input arguments. For example: [q,r] = swap(5,10) returns q = ...

7년 이상 전

해결됨


Too mean-spirited
Find the mean of each consecutive pair of numbers in the input row vector. For example, x=[1 2 3] ----> y = [1.5 2.5] x=[1...

7년 이상 전

해결됨


Distance walked 1D
Suppose you go from position 7 to 10 to 6 to 4. Then you have walked 9 units of distance, since 7 to 10 is 3 units, 10 to 6 is 4...

7년 이상 전

해결됨


How to find the position of an element in a vector without using the find function
Write a function posX=findPosition(x,y) where x is a vector and y is the number that you are searching for. Examples: fin...

7년 이상 전

해결됨


Sum all integers from 1 to 2^n
Given the number x, y must be the summation of all integers from 1 to 2^x. For instance if x=2 then y must be 1+2+3+4=10.

7년 이상 전

해결됨


Mandelbrot Numbers
The <http://en.wikipedia.org/wiki/Mandelbrot_set Mandelbrot Set> is built around a simple iterative equation. z(1) = c z...

8년 이하 전

질문


How to generate a PDF tuning report containing text and figures?
I am using a MATLAB script to tune a control system. When the tuning is complete, I would like a report containing text (especia...

약 8년 전 | 답변 수: 0 | 1

0

답변

해결됨


Word Counting and Indexing
You are given a list of strings, each being a list of words divided by spaces. Break the strings into words, then return a maste...

약 8년 전

답변 있음
How to debug SOAP message from matlab
I have taken this from an answer I put on StackOverflow. Here is an example of a successful web service query. msg = c...

8년 이상 전 | 0

해결됨


It dseon't mettar waht oedrr the lrettes in a wrod are.
An internet meme from 2003 (read more <http://www.snopes.com/language/apocryph/cambridge.asp here>) asserted that readers are re...

8년 이상 전

해결됨


Knight's Tour Checker
Given a matrix a, determine whether or not a legal <http://en.wikipedia.org/wiki/Knight's_tour knight's tour> is present. The kn...

8년 이상 전

해결됨


Find the peak 3n+1 sequence value
A Collatz sequence is the sequence where, for a given number n, the next number in the sequence is either n/2 if the number is e...

8년 이상 전

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