Community Profile # David Hill

### Carnegie Mellon University (CMU)

Last seen: Today Attivo dal 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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Array Height (no usage of size)
Find the array height, the number of rows. Size may not be used.

circa 2 ore fa

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Array Width (no usage of size)
Find the array width. Size may not be used.

circa 2 ore fa

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Concatenate a successive power matrix in a column matrix
Generate F = [M1 M^2 ... M^p] with M a matrix, without using for.

circa 2 ore fa

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Intersection(s) of Circles
Do two given circles intersect in Zero, One, or Two points and provide the intersection(s). The Stafford method may provide some...

circa 3 ore fa

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Solve an ODE: draining tank
Write a function to compute the time to drain a cylindrical tank of diameter from an initial level to a level . The outflow oc...

2 giorni fa

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Compute piezometric head in a leaky confined aquifer
Problem statement Write a function to compute the piezometric head in a leaky confined aquifer and the position of a groundwat...

2 giorni fa

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Compute the water table elevation in an unconfined aquifer with recharge
Problem statement Write a function to compute the water table elevation above the bottom of the aquifer and the position of a ...

3 giorni fa

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Compute the Sisyphus sequence
A recent article in the New York Times featured the Online Encyclopedia of Integer Sequences, founded by Neil J.A. Sloane. One o...

3 giorni fa

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Count collisions in an idealized block system
Two blocks, which have masses and , slide along a frictionless, semi-infinite track bounded by a stationary wall. Initially blo...

3 giorni fa

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List numbers such that every sum of consecutive positive integers ending in those numbers is composite
The sequence in question in this problem involves numbers such that all sums of consecutive positive integers ending with are ...

3 giorni fa

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Find the altitudes of a triangle
Write a function that takes the x- and y-coordinates of three points describing the vertices of a triangle and returns the coord...

3 giorni fa

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Why does my code take so long to run?
You can use this code, but you will have to still split up f and h to have enough memory. Based on your ranges, the highest scor...

4 giorni fa | 0

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I need help graphing these simple functions. I keep getting a blank graph
Need a few more dots. r=linspace(0,100,101); v=(r./(r+100))*10; p=(v.*(r).^2)./r; grid plot(r,p);

4 giorni fa | 0

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How to convert lat lon to utm data and plot it in 10x10m^2 grid map.

4 giorni fa | 0

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Plotting solutions with symbolic variables
h=10;P=100;Ac=5;Lc=17;aff=19;Tw=7;Ta=5;Li=11;%have no idea what your constants are syms Tsp1 km; xb = (h * P)/ (km * Ac); mb ...

4 giorni fa | 1

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Sum of numbers from 1-100
Sum up every whole number from 1 to 100. Include 1 and 100 in your calculation.

4 giorni fa

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Find the nine-point circle of a triangle
Cody Problem 1336 asks us to find the circle that circumscribes a triangle, and Cody Problem 58354 asks us to find the circle th...

4 giorni fa

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Compute measurement uncertainty
Suppose a variable depends on independent variables , , . If the independent variables have uncertainty , , etc. and the uncer...

4 giorni fa

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Array size along k-th dimension
Given an n-dimensional array M, find the size of M along the k-th dimension (1 <= k <= n), without using size(), height() or wid...

4 giorni fa

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

5 giorni fa

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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...

5 giorni fa

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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...

10 giorni fa

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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...

11 giorni fa

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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...

11 giorni fa

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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...

11 giorni fa

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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...

12 giorni fa

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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...

12 giorni fa

Risposto
Trying to shade the area between upper and lower confidence bands on Kaplan Meier Curve