Community Profile

# David Hill

### Carnegie Mellon University (CMU)

Last seen: Today 2017년부터 활동

Master's Student in Robotic Systems Development (MRSD), BS Electrical Engineering with minors in Computer Science and Mathematics.

Programming Languages:
Python, C++, C, Java, Javascript, R, MATLAB, CSS, Arduino
Spoken Languages:
English, Spanish
Professional Interests:
Robotics and Autonomous Systems, Embedded Systems

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Summing the last column column
Given a matrix, return the sum of the last column of the array.

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Return part of an array
Given a 5x5 array, return a 3x3 array that contains the cells that are not on the edge of the array: Given this array Return...

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Problem statement Write a function that computes the head (i.e., piezometric head for a confined aquifer or water table elevat...

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Given a base n, find the y values less or equal than 100(without 1), such that they will never produce a periodic number if we divide any whole number between some of them
A periodic number depends on the base b where we are working. So, for example the number 2/3 in decimal base is periodic(0.666...

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A row vector, pick 1st number, skip 1,pick 3rd number, skip 2,pick,skip,etc then place all picked numbers in order in new vector
Having a row vector of number, pick the first number, place in new output vector as the first value, then skip one number, pick...

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Find out the smallest number 9 times greater
What is the smallest natural number where the result of moving the digit on the far right to the front of the number is a number...

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Find the smallest number leading to a maximal product of two numbers that concatenate to another number
Cody Problem 58971 involves the maximal product of numbers that concatenate to a number . For example, if , then the products ar...

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Compute the maximal product of any two numbers whose concatenation is n
Write a function that takes an input and computes the maximal product of numbers that concatenate to . For example, if , then t...

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A Mathematical Problem
Find the kth digit of the inverse of a number 'n'. Assumption: n>1

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Identify eban numbers

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Alternate Arrangement
Determine the ways of arranging 'm' men and 'w' women alternatively in a row of 's' seats. Assumptions : s<m and s<w

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Getting Maximum Chocolate
John loves Chocolate but he didn't have money. The owner of "Sweet Chocolate" launches a scheme for free chocolate. He divided a...

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Hemisphere Volume on Top of a Cylinder
This MATLAB function has to calculate the volume of a hemisphere placed on top of a cylinder, given valid inputs. It takes the r...

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Build the Well
Calculate the total time taken for building 'n' wells given : Worker A takes a hr to build the well alone Worker B takes b hr...

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Is it the answer to life the universe and everything?
The answer to life the universe and everything is 42, but this is naturally in base 13. Unfortunately, MATLAB is in base 10, so ...

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A times B
A times B

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Determine if input is greater than 100
Evaluate if given number is greater than 100. If greater, return true; else, return false.

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Fibonacci Sequence
Write a MATLAB function called fibonacci_sequence(n) that takes an integer n as input and returns the first n terms of the Fibon...

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Add Odd and Subtract Even Numbers in an Array
For an input array, add all the odd values and subtract the even values. The final value is the output. E.g. input = [1 2 3 4 ...

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Calculate the price
Milk is \$15/pound, sugarr is \$5/pound, and coffee is \$5/cup. Please help the cashier calculate the price for each order.

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Magnitude with vargin
Magnitude with an undefined amount of arguments

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How many offices does MathWorks have in the UK
Please write a function that returns the number of offices MathWorks has in the UK.

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Find collatz series next number
For given x, if x is even, output is (x/2) if x is odd, output is (3x+1)

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Convert row and column subscripts to linear indices
Convert 2D row and column subscripts to linear indices WITHOUT sub2ind Example: row = [1 2 3 1]; col = [2 2 2 3]; sz = [3 3]...

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Am I a city or a state
Input will be an array of cities and states. Also, lists of cities and states will be passed. Replace every city name with "cit...

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※本問は、2023/7/24開催の、筑波大学でのセミナーのために作成した問題です。 掃き出し法を使った連立一次方程式の解法を穴埋めで実装してみましょう。 左辺と右辺を、それぞれ以下の行列Aおよび列ベクトルBで表したものが与えられたとします。この時、...

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Determine if input is greater than pi
Evaluate if given number is greater than pi. If greater, return true; else, return false.

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Check for armstrong number
Given a number, check if it is an armstrong number. Eg: n = 371 Output: 1 Eg: n = 75 Output: 0

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How many revolutions around the earth
Calculate how many revolutions you will around the earth till 1/1/2100. Given the birhdate find your age in number of days on 1...

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Solve the logic
logic(1) = -4 logic(2) = -8 logic(3) = -9 logic(4) = 4 logic(5) = 95 logic(6) = 690

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