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# Philip Butcher

Last seen: 3ヶ月 前 2020 年からアクティブ

Model-Based Software Development, DO-178C.

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Use a timetable to analyze a train timetable (Part 1)
Oh no, you missed your train to Boston! Find the departure time of the next available train by analyzing the train timetable. Th...

5ヶ月 前

Find all prime factors of the input
Given an input x, find its all prime factors. Return the vector with all factors in ascending order. Efficiency is the key here...

5ヶ月 前

Split Even Number Into Two Primes
Given an even whole number n (> 2), return a 2-element vector of primes, p, such that p(1) + p(2) = n. Fun note: technically it...

5ヶ月 前

Dartboard Average I
A dartboard arranges the numbers 1 to 20 such that each value is typically flanked by quite different values - for example, 20 i...

5ヶ月 前

Determine if Input is Oddish or Evenish (Odd/Even Sum of Digits)
Given a positive integer n, determine whether n is "oddish" or "evenish" - that is, whether the sum of the digits of n is odd or...

5ヶ月 前

Replace Vector Elements
Replace all elements in a vector which are equal to or smaller than zero with 0.1. Example: A = [1 2 3 -1 0 2 -3 -80]; ...

5ヶ月 前

Is the number of 1s in a binary integer odd or even?
Your function should turn the input integers into binary form and count the number of 1s in the binary. If the number is odd, re...

5ヶ月 前

Get the n-th rand number with given seed
Given seed s, return the n-th rand number using rand(). Round the answer with 4 digits. n is a postive integer.

5ヶ月 前

Sum of series VII
What is the sum of the following sequence: Σ(km^k)/(k+m)! for k=1...n for different n and m?

5ヶ月 前

Sum of series
a(n) = n^2 - (n-1)^2 find the summation of the series upto n i.e. a(1)+a(2)+...+a(n)

5ヶ月 前

Sum of series IX
What is the sum of the following sequence: Σ 1/k! for k=1...n for different n?

5ヶ月 前

Sum of series VI
What is the sum of the following sequence: Σk⋅k! for k=1...n for different n?

5ヶ月 前

Sum of series VIII

5ヶ月 前

Sum of series V
What is the sum of the following sequence: Σk(k+1) for k=1...n for different n?

5ヶ月 前

Sum of series IV
What is the sum of the following sequence: Σ(-1)^(k+1) (2k-1)^2 for k=1...n for different n?

5ヶ月 前

Sum of series III
What is the sum of the following sequence: Σ(2k-1)^3 for k=1...n for different n?

5ヶ月 前

Sum of series II
What is the sum of the following sequence: Σ(2k-1)^2 for k=1...n for different n?

5ヶ月 前

Sum of series I
What is the sum of the following sequence: Σ(2k-1) for k=1...n for different n?

5ヶ月 前

Mass Conversion 2

5ヶ月 前

Area Conversion 2

5ヶ月 前

Area Conversion 1

5ヶ月 前

Velocity Conversion
Given a velocity in mph, convert it to km/h. Round the answer to the fourth decimal place.

5ヶ月 前

Energy Conversion 2

5ヶ月 前

Energy Conversion 1

5ヶ月 前

Laws of motion 1

9ヶ月 前

Find Logic 31

12ヶ月 前

Find Logic 24

12ヶ月 前

Mass Conversion 1

1年以上 前

Temperature Conversion 3

1年以上 前

Temperature Conversion 2

1年以上 前