Philip Butcher
Last seen: Today
520 total contributions since 2020Model-Based Software Development, DO-178C.
Philip Butcher's Badges
Solve 500 problems
Awarded to Philip Butcher on 13 Nov 2020
Solve Project Euler problems using Matlab
Awarded to Philip Butcher on 17 Oct 2020
MATLAB Central Treasure Hunt finisher badge
Awarded to Philip Butcher on 17 Oct 2020
Accept 1 answer given by other contributors
Awarded to Philip Butcher on 09 Oct 2020
Solve all the problems in R2016b Feature Challenge
Awarded to Philip Butcher on 05 Sep 2020
Solve all the problems in Draw Letters problem group
Awarded to Philip Butcher on 31 Aug 2020
Comment on a problem or solution
Awarded to Philip Butcher on 21 Aug 2020
Solve all the problems in CUP Challenge
Awarded to Philip Butcher on 15 Aug 2020
Like a problem or solution
Awarded to Philip Butcher on 07 Aug 2020
Be the first to solve a problem
Awarded to Philip Butcher on 07 Aug 2020
Solve all the problems in Introduction to MATLAB problem group
Awarded to Philip Butcher on 30 Jul 2020
Solve a problem with a best solution
Awarded to Philip Butcher on 29 Jul 2020
Solve a community group
Awarded to Philip Butcher on 21 Jul 2020
Solve a problem for the first time
Awarded to Philip Butcher on 07 Apr 2020
Solved
Narcissistic number ?
Inspired by Problem 2056 created by Ted. In recreational number theory, a narcissistic number is a number that is the sum of ...
circa 2 mesi ago
Solved
Determine if input is a Narcissistic number
<http://en.wikipedia.org/wiki/Narcissistic_number Narcissistic number> is a number that is the sum of its own digits each raised...
circa 2 mesi ago
Solved
Determine if input is a perfect number
A <http://en.wikipedia.org/wiki/Perfect_number/ perfect number> occurs whent the sum of all divisors of a positive integer, exce...
circa 2 mesi ago
Solved
Is it an Armstrong number?
An Armstrong number of three digits is an integer such that the sum of the cubes of its digits is equal to the number itself. Fo...
circa 2 mesi ago
Solved
Armstrong Number
Determine whether the given input n-digit number is Armstrong Number or not. Return True if it is an Armstrong Number. An n-D...
circa 2 mesi ago
Solved
Determine if a Given Number is a Triangle Number
*Description:* Determine if the elements of an input array are triangle numbers and return the result as an array with the sa...
2 mesi ago
Solved
Compute Fibonacci Number
Compute the _n_-th Fibonacci Number f(0) = 0, f(1) = 1, f(2) = 1, f(3) = 2, ... f(42) = 267914296
2 mesi ago
Solved
(Linear) Recurrence Equations - Generalised Fibonacci-like sequences
This problem is inspired by problems <http://uk.mathworks.com/matlabcentral/cody/problems/2187-generalized-fibonacci 2187>, <htt...
2 mesi ago
Solved
Is X a Fibonacci Matrix?
In honor of Cleve's new blog and post: <http://blogs.mathworks.com/cleve/2012/06/03/fibonacci-matrices/> Is X a Fibonacci ...
2 mesi ago
Solved
Return fibonacci sequence do not use loop and condition
Calculate the nth Fibonacci number. Given n, return f where f = fib(n) and f(1) = 1, f(2) = 1, f(3) = 2, ... Examples: ...
2 mesi ago
Solved
Find last zero for each column
Given a numeric array of arbitrary size, return the row index of the last zero for each column. If a column contains all nonzero...
2 mesi ago
Solved
First non-zero element in each column
For a given matrix, calculate the index of the first non-zero element in each column. Assuming a column with all elements zero ...
2 mesi ago
Solved
Return elements unique to either input
Given two numeric inputs a and b, return a row vector that contains the numbers found in only a or only b, but not both. For ex...
2 mesi ago
Solved
Finding peaks
Find the peak values in the signal. The peak value is defined as the local maxima. For example, x= [1 12 3 2 7 0 3 1 19 7]; ...
2 mesi ago
Solved
Symmetry of vector
Determine whether the vector is symmetric or not (vector could be even or odd in length). For example: x = [1 2 3 3 2 1] ...
2 mesi ago
Solved
Simple equation: Annual salary
Given an hourly wage, compute an annual salary by multiplying the wage times 40 and times 50, because salary = wage x 40 hours/w...
2 mesi ago
Solved
Sum the numbers on the main diagonal
Sum the numbers on the main diagonal of an n-by-n matrix. For input: A = [1 2 4 3 6 2 2 4 7]...
2 mesi ago
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