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David Hill


Last seen: Today Actif depuis 2017

Electrical Engineering with minors in Computer Science and Mathematics. Working as an Undergraduate Research Assistant in the field of Robotics.

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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A répondu
How to make a 'case' go over each element in a vector ?
tcue = TIMES+floor(NS)-0.5;

environ 8 heures il y a | 0

A répondu
Randomize vector avoiding consecutive values
leftSides = [1,3,5]; leftPos_trials = repmat(leftSides,1,14); idx=randperm(42); while any(diff(leftPos_trials(idx))==0) ...

1 jour il y a | 0

A répondu
Iteration over for loop using a vector
n_trial = 12; n_probe =7; longer_array = [1:84]; for trial = 1:n_trial for probe = 1:n_probe longer_array((trial...

1 jour il y a | 0

| A accepté

A résolu


Compute a row of the Kimberling shuffle

6 jours il y a

A résolu


Deduce the pattern behind the sequence

6 jours il y a

A résolu


Compute the area of the shoemaker’s knife
A shape resembling a shoemaker’s knife is constructed from a semicircle with diameter with two semicircular “bites” of diameter...

6 jours il y a

A résolu


Find patterns in subprime Fibonacci sequences
Lots of Cody problems involve Fibonacci and Collatz sequences. Fibonacci sequences start with two numbers, and later terms are c...

7 jours il y a

A résolu


Hermite Polynomials
Problem 1304 deals with Hermite polynomial of the physicist's type. In this problem, Return the n-th Hermite polynomial of the ...

7 jours il y a

A résolu


About jokes (and compression)
An argument can be made about jokes. The shorter they are, the funnier. Further explained here: https://en.wikipedia.org/wiki/Hu...

9 jours il y a

A résolu


Counting Permutations
In the permutations of the numbers 1 to n, count the number of permutations in which exactly m elements are greater than the pre...

10 jours il y a

A résolu


Play with array Min-Max
An array is provided. For example, a= [ 2,1,11,4,5,13] Create an array from a like this way, out= [ 1,11,2,13,4,5] ➢ 1st take...

11 jours il y a

A résolu


An array is given that contains the marks. Find out the highest 3 marks
An array is given that contains the marks received by a group of students in their class test. Find out the highest 3 marks rec...

11 jours il y a

A résolu


Given a matrix X, manipulate it accordingly
Given a matrix X, 1st add a column to the matrix whose elements are the summation of each rows. Then add a row to the matrix who...

11 jours il y a

A résolu


An array is given. Find the unique elements of the array. [keep the sequence unchanged]
An array is given. Find the unique elements of the array. [keep the sequence unchanged] For example if input x=[2 ,4 , 9 ,2 ,...

11 jours il y a

A résolu


Find alternating sum
Given an array, find alternating sum i.e. – y = x (1) – x (2) + x (3) – x (4) + x (5) - …

11 jours il y a

A résolu


Extract the prime numbers
Given a list of elements, extract the prime numbers from that array.

11 jours il y a

A répondu
Professor needs specific color for bar graph, but the hex code for the color is not working.
bar(1,10,'FaceColor','#18453B')%use FaceColor

14 jours il y a | 0

A répondu
I am learning still and i have no idea how to write 8y''' - y' = cos(20t) + sin(2t) in matlab
Your boundary condition was not provided. [t,y] = ode45(@vdp1,[0 1],[0; 0; 0]); subplot(3,1,1); plot(t,y(:,1)); subplot(3,1,...

14 jours il y a | 0

A répondu
How to convert categorical data to double with unique rows
a=readtable('Book1.xlsx'); b=zeros(size(a)); b(ismember(a.Vertical_Steering,'Limbo'))=6

16 jours il y a | 1

| A accepté

A répondu
Matrix manipulation / if else loops
Misunderstood you previously. m = [0 0 0; 1 0 0; 1 1 0; 1 0 0; 1 0 0; 1 1 1; 0 1 1; 0 1 1; 1 1 1; 1 1 0; 1 1 0; 1 0 0; 1 1 0; 1...

16 jours il y a | 0

| A accepté

A répondu
How I find four or five colunms with distict rows from a table
First convert your table into a matrix using table2array() A=randi(100,115,64); k=nchoosek(1:64,5);%all combinations of 5 colu...

16 jours il y a | 0

A résolu


Compute the unitary totient of a number
The totient function , the subject of Cody Problems 656 and 50182, gives the number of integers smaller than that are relativel...

29 jours il y a

A résolu


Easy Sequences 84: Digits of Powers of 5
OEIS sequence #A008566, deals with the following series: This sequence is the digits of powers of 5 listed si...

30 jours il y a

A résolu


Travelling Salesman Problem (TSP)
Find a short way through given points. This is the travelling salesman problem. But the solution should be a fast and small func...

environ un mois il y a

A résolu


Locate image wells
A mathematical model of wells pumping groundwater near a boundary can be constructed using the method of images, which is also u...

environ un mois il y a

A résolu


Determine if input is a Harshad number
In mathematics a harshad number (or Niven number) in a given number base is an integer that is divisible by the sum of its digit...

environ un mois il y a

A résolu


Compute the largest number with a given integer complexity
Cody Problems 42831 and 42834 ask us to compute integer complexity, the smallest number of 1s needed to construct a number with ...

environ un mois il y a

A résolu


Compute the Tetris sequence
In the Tetris sequence, which starts with a 1, the next term is the smallest positive integer not already in the sequence that h...

environ un mois il y a

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