Hong Son

Last seen: Today | Active since 2024

Followers: 2 Following: 0

Programming Languages:
Python
Spoken Languages:
English
Pronouns:
He/him

Statistics

Feeds

Solved

Leonardo primes
Leonardo numbers are defined by following recurrence relation: Leonard prime is Leonardo number which is also prime (see ...

2 months ago

Solved

Legend of Zelda - Rupee Count (Item Purchase)
Building off of <https://www.mathworks.com/matlabcentral/cody/problems/3025-zelda-rupee-count Problem 3025>, suppose that an arr...

2 months ago

Solved

Alternative Scoring. Create an incremental spiral.
This problem is created to test an alternative Cody scoring system. It is based on the current one, but few changes are introduc...

2 months ago

Solved

Determine if given number is perfect
A number is perfect if it is equal to the sum of its factors, excluding itself. Example The number 6 is perfect since its fact...

2 months ago

Solved

Integer to boolean
Write a general function that will create the following conversation; Input is a column vector with integers Output is a b...

2 months ago

Solved

Permutation
How many different words can be formed using all the letters(together) from a given input word? Input is a string.

2 months ago

Solved

attenuation
A beam of X-rays propagates a length d(1) through a medium with an attenuation coefficient alpha(1). After that the beam propaga...

2 months ago

Solved

Get ranks of values in a vector
For a given vector, say [6 3 8 2], return the ranks (ascending) of observations, i.e. [3 2 4 1]. Do not worry about tied ranks. ...

2 months ago

Solved

Create a recurrence matrix for a vector of data
In <https://en.wikipedia.org/wiki/Conversation_analysis conversation analysis>, it's often useful to track the contributions fro...

2 months ago

Solved

Calculate triangle area
Imagine that you want to calculate the areas of some triangles given in matrix form. First the coordinates of the vertices of th...

2 months ago

Solved

Build edges list
Input T is a triangulation connectivity indices list (triplet list of indices -positive integers-, each index refering to a vert...

2 months ago

Solved

[Thermodynamics] Polynomial fitting of heat capacity data

2 months ago

Solved

Orientation of a 3D coordinate frame
The orientation of a body-fixed frame {B} with respect to the world frame {W} is described by an SO(3) rotation matrix. Compute...

2 months ago

Solved

convert 2D array of ones and zeros to checkerboard array of [1,2] where the original array was ones and zero elsewhere
Given a 2D array of ones and zeros, generate an equivalent sized checkerboard array of ones and twos. The checkerboard pattern s...

2 months ago

Solved

Five Fingers
A little girl has just learnt how to count from 1 to N using the five fingers of her left hand as follows. She starts by calling...

2 months ago

Solved

Dial Up
Each number on telephone keypads, except 0 and 1, corresponds to a set of uppercase letters as shown in this list: 2 ABC, 3 DEF...

2 months ago

Solved

AK Sorting according to given order
Conventional ascending order of one digit number is [ 0, 1, 2, ......9]. Now this order is changed and stored in vector a. For e...

2 months ago

Solved

Create Truth Table of Size according to input
Create a Truth Table Example: n = 3 output = [0 0 0; 0 0 1; 0 1 0; 0 1 1; 1 0 0; 1 0 1; 1 1 0; 1 1 1]

2 months ago

Solved

Luhn's Algorithm
Luhn's Algorithm is used as a checksum for credit card numbers or similar identifiers. It can detect single-digit changes and sw...

2 months ago

Solved

Where do the maximum number belongs within a 3-D matrix?
Suppose, you are given two variables a and b as inputs in 2-D format. Find out, where do the maximum number belongs (as output c...

2 months ago

Solved

Create a vector of the first n natural numbers (★)
If n = 7, your program should return a vector y, where y = [1 2 3 4 5 6 7].

2 months ago

Solved

Matrix to vector transformation
given a matrix, make in the output 1 column vector putting odd numbers in ascending order after that put the even numbers in des...

2 months ago

Solved

Find the largest number
Find the largest number |x| among 4 numbers given as variables |a|, |b|, |c|, and |d|. Example: Input: a = 4; b = 7; c ...

2 months ago

Solved

Check transmitted data follow even parity (True or false)
Check transmitted data follow even parity (True or false) <http://en.wikipedia.org/wiki/Parity_bit/ Parity Bit> Say, '010...

2 months ago

Solved

Mongean Shuffle : 2
Extension to <https://www.mathworks.com/matlabcentral/cody/problems/2479-mongean-shuffle problem 2479>: Determine the number...

2 months ago

Solved

Where is 1?
There is a 3d matrix [A] that consist of many zeros and only one. A=zeros(100,100,100); i=randi(100); j=randi(100); k=randi(...

2 months ago

Solved

means
Calculate the arithmetic, the geometric and the harmonic mean of a given vector (with positive elements) and return them in a ve...

2 months ago

Solved

2D - Mean Filter
Assume you are given an "image" matrix of size NxM. Reduce the image noise by implementing a mean filter window of size 9 (a 3x3...

2 months ago

Solved

Summing Rows and Columns
Create a matrix y of size (n+1) whose last column's elements are the summation of the elements of all the other columns and last...

2 months ago

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]; ...

2 months ago