David Hill
Electrical Engineering with minors in Computer Science, Mathematics, and Creative Writing.
Working as Undergraduate Research Assistant in the field of Computational Photonics
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MATLAB Central Community 20 Year Anniversary Treasure Hunt participant badge
Awarded to David Hill on 14 Sep 2021
Contribute at least one answer each month for 24 consecutive months
Awarded to David Hill on 02 Aug 2021
Answer 3 questions that were unanswered for more than 30 days
Awarded to David Hill on 11 Jan 2021
Solve all the problems in Sequences & Series II
Awarded to David Hill on 03 Jun 2021
Solve all the problems in Cody5:Easy
Awarded to David Hill on 02 Jun 2021
Your submissions received 5 five star ratings
Awarded to David Hill on 16 Sep 2020
Your submissions were downloaded 100 or more times in a month
Awarded to David Hill on 03 Mar 2020
Solve all the problems in Number Manipulation II problem group
Awarded to David Hill on 06 Apr 2021
Solve all the problems in Draw Letters problem group
Awarded to David Hill on 03 Apr 2021
Solve all the problems in Cody Problems in Japanese problem group
Awarded to David Hill on 10 Mar 2021
Solve all the problems in Cody Challenge
Awarded to David Hill on 24 Feb 2021
Solve all the problems in Computation Geometry I
Awarded to David Hill on 24 Feb 2021
Content Feed
Solved
Matrix which contains the values of an other matrix A at the given locations.
If you have two matrices, which together give xc and yc coordinates into another matrix, eg : xc = [1 1 1; 2 2 1]; ...
etwa 3 Stunden ago
Solved
No Twins?
Write a function that accepts as input a vector and returns the same vector, but retaining only the first occurrence of an eleme...
etwa 3 Stunden ago
Solved
Find the elements of a matrix according to a defined property.
From A = [5,2,3] and B = [1,2,3,4,5,6,7,8,9,10] produce a vector C where : C(1) is the sum of the first A(1) elements of B, ...
etwa 3 Stunden ago
Solved
A quadrant matrix
Write a function called quadrants that takes as its input argument a scalar integer named n. The function returns Q, a 2n-by-2n ...
etwa 3 Stunden ago
Solved
Find the distance traveled by a car given velocity and time.
A car is traveling at a constant velocity for a specific amount of time. The function should use the two inputs, velocity and ti...
etwa 6 Stunden ago
Solved
Where is the number that you want to find?
For a given matrix A, find where the input number x appears. Do this task by returning the vector which contains the row and th...
etwa 6 Stunden ago
Solved
determine if
determine if the elements of a matrix is a nan and return true
etwa 6 Stunden ago
Solved
Sum the rows
Sum the rows of the given matrix. Example x = [ 1 2 3 4 ] y = [ 3 7 ]
etwa 6 Stunden ago
Solved
Make an identity matrix whose diagonal elements are 1:n
For a given input n, make an n by n identity matrix that contains the elements 1:n along its diagonal. For example, if input=5: ...
etwa 6 Stunden ago
Solved
Increment up an input vector
Increment up an input vector by adding the indices to the vector values. For example, if an input vector is [3, 2, 6, 1, 6], the...
etwa 6 Stunden ago
Solved
Pairwise column flip
Given matrix *M_in*, flip every pair of columns. So if *M_in* is 1 2 3 4 1 2 3 4 then *M_out* is 2 1 4 3 2 1 4 3 ...
etwa 6 Stunden ago
Solved
Matrix Generation from Vector Multiplication
Output the matrix generated from multiplying two vectors together
etwa 24 Stunden ago
Solved
String Delimination and Outputting
In this problem, take an incoming string and deliminate the string based on spaces. Output the first string in between the space...
etwa 24 Stunden ago
Solved
Check if inputted variable is a string or a number
Check if a inputted variable is a number or a string, given a string input (i.e. '1' is 1 and thus a number, 'a' is a string).
etwa 24 Stunden ago
Solved
Automatic String Editing
In this function, you will take an incoming string, and output the same string with each character one letter later in the alpha...
etwa 24 Stunden ago
Solved
Matrix element wise multiplication
Take two incoming vectors, and multiply them element wise
etwa 24 Stunden ago
Solved
Vector indexing: lower than mean
Find all values in a vector lower than the mean of the vector
etwa 24 Stunden ago
Solved
Vector Element Multiplication
Take two incoming vectors, and output the element wise multiplication of the vectors.
etwa 24 Stunden ago
Solved
More Simple String Concatenation
Take the first string input, reverse the order of the string from the end to beginning (i.e. apple becomes elppa), add a space a...
etwa 24 Stunden ago
Solved
Simple String Concatenation
This is a simple problem involving taking two incoming strings, and outputting the concatenated string with a space separating t...
etwa 24 Stunden ago
Solved
Replace 0 indices in array with 1's
Take a incoming vector, and replace 0's with ones
etwa 24 Stunden ago
Solved
Matrix multiplication
Multiply two incoming matrices via matrix multiplication
etwa 24 Stunden ago
Solved
Find the index of the lowest number in a matrix
Take a matrix, and find the [row cal] index of the lowest number
etwa 24 Stunden ago
Solved
Simple Vector Addition
Take two incoming vectors and output the sum of the two vectors
etwa 24 Stunden ago
Solved
Easy Sequences 19: Length of Prime-sided Rectangle with Maximum Area
A prime-sided rectangle is a rectangle having sides represented by prime numbers. The figure below shows all the possible prime-...
ein Tag ago
Solved
Multiply binary numbers
Write a function to multiply two binary numbers input as strings. For example, input values of ‘1011’ and ‘101’ should give ’110...
ein Tag ago
