David Hill

Carnegie Mellon University (CMU)

Last seen: Today | Active since 2017

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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Compute the head for steady 1D flow in a homogeneous aquifer
Problem statement Write a function that computes the head (i.e., piezometric head for a confined aquifer or water table elevat...

4 days ago

Solved

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...

5 days ago

Solved

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...

5 days ago

Solved

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...

5 days ago

Solved

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...

6 days ago

Solved

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...

6 days ago

Answered
Trying to shade the area between upper and lower confidence bands on Kaplan Meier Curve
A=readmatrix('data table.csv','Range','A13:D408'); timeDays=A(:,1)';probability=A(:,2)';Lower=A(:,3)';Upper=A(:,4)'; plot(time...

6 days ago | 0

| accepted

Answered
seach string in arraycell and find idx
C = {'A',31; 'B',5; 'C',3}; idx = find(ismember(C(:,1),{'A'}))

7 days ago | 1

| accepted

Answered
transform exponential number to decimal
M1 = importdata("M1.mat"); A = compose('%d (%3.2f%%)', [M1(:,1), M1(:,2)])

14 days ago | 0

| accepted

Answered
Catenary at different height between 2 fixed points ?
maximum a is minimum y. And the minimum cable length can be found using: a=2;H=10; minL=2*a*sinh(H/2/a) Use cable length > mi...

19 days ago | 0

Answered
Can you help me create a function according to mathematical formula?
A=randi(128,1,20) for k=1:3 B=sum(A)/numel(A); idx=A<B; g{k}=A(idx); A(idx)=[]; end g{4}=A; g

19 days ago | 0

Answered
how to speed ...i need very fast code
q=6062; matrix=matri(1:q,:); c=size(matrix,2); COR=zeros(c); a=matrix; for yy=1:c b=matrix(:,yy); COR(yy,:)=round(s...

25 days ago | 0

Answered
Plot multiple variables from table with different x axes
figure;hold on; for i=1:10 stairs(eval(sprintf('Map1.Distance_%1d',i)),eval(sprintf('Map1.Ca_%1d',i))); end

26 days ago | 1

Answered
New line after fprintf in a for/ while loop
a=randi(100,1,100); for k=1:100 formatSpec = 'a is %2g\n'; if a(k)>90 fprintf(formatSpec,a(k)); end end

27 days ago | 0

| accepted

Answered
how to make a loop with an if condition for a system of equations
z2 =[-0.17162382699849727786214078518756;-0.091002558325694825093302376780363;... -0.031615696698776074425432150707406;-0.0...

1 month ago | 0

| accepted

Submitted

RSA Encryption/Decryption GUI
Implements RSA encryption/decryption using Optimal Asymmetric Encryption Padding (OAEP) from the PKCS#1 v2.2:RSA Cryptography St...

2 months ago | 1 download |

Solved

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

2 months ago

Solved

Identify eban numbers

2 months ago

Solved

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

2 months ago

Solved

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...

2 months ago

Solved

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...

2 months ago

Solved

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...

2 months ago

Solved

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 ...

2 months ago

Solved

A times B
A times B

2 months ago

Solved

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

2 months ago

Solved

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...

2 months ago

Solved

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 ...

2 months ago

Solved

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.

2 months ago

Solved

Magnitude with vargin
Magnitude with an undefined amount of arguments

2 months ago

Solved

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

2 months ago

David Hill

Carnegie Mellon University (CMU)

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