Discussion

Recursion - Looping or Vectorization
For some time now, this has been bugging me - so I thought to gather some more feedback/information/opinions on this. What wo...

6 months ago | 0

Problem

Touchard Polynomial
Return the coefficients of nth (n>=0) Touchard polynomials - T1(x) = x; output = [1 0]; T2(x) = x^2 + x; output = [1 1 0]...

6 months ago | 0 | 7 solvers

Problem

Padovan Polynomials
Hello there. I'm afraid I bear bad news - Anakin Skywalker is no longer a Jedi. But fear not young Padawan, we shall not falter...

6 months ago | 1 | 9 solvers

Solved

find powers of two
find the unique, non-repeating, powers of 2 that sum to a given non-zero integer, n example: n = 23 result = [1 2 4 16] ...

6 months ago

Solved

Sequence problem
find the nth term of the sequence: 790 1303 2033 ____ 4366 6095

6 months ago

Solved

Total Area Covered by Overlapping Polygons
Given a variable length set of polygon vertex coordinates, compute the total area covered. For example, take two polygons with t...

6 months ago

Solved

Stirling Numbers - I
Problems #1388 & #45187 deal with Stirling numbers of the 2nd Kind. Here, generate the Stirling numbers S(n,k) of the 1st kind ...

6 months ago

Problem

Stirling Numbers - I
Problems #1388 & #45187 deal with Stirling numbers of the 2nd Kind. Here, generate the Stirling numbers S(n,k) of the 1st kind ...

6 months ago | 0 | 8 solvers

Solved

Bernstein Basis Polynomials
Return the coefficients of a Bernstein Basis Polynomial B(v,n) for degree n and order v - %Examples B(2, 5) = 10*x^2*(1-x)...

6 months ago

Problem

Bernstein Basis Polynomials
Return the coefficients of a Bernstein Basis Polynomial B(v,n) for degree n and order v - %Examples B(2, 5) = 10*x^2*(1-x)...

6 months ago | 0 | 8 solvers

Solved

Multiply real numbers to get the smallest integers
Write a function that takes a vector of real numbers and multiplies them by a factor to produce the integers with the smallest a...

6 months ago

Solved

Dickson Polynomials
Return the coefficients of nth (n>=0) Dickson polynomial of the 1st kind as follows - 1st row of the output will be the coeffi...

6 months ago

Problem

Dickson Polynomials
Return the coefficients of nth (n>=0) Dickson polynomial of the 1st kind as follows - 1st row of the output will be the coeffi...

6 months ago | 0 | 8 solvers

Solved

Path calculation with polynomials
Let a vector x be the input to our function. 1. If a value of an input vector element x is lower than 0, set this value to 0....

6 months ago

Solved

Cumulative Count
Given a row vector of integers with repeating values (with all repeating values occuring in a single continuous run), create an ...

6 months ago

Problem

Cumulative Count
Given a row vector of integers with repeating values (with all repeating values occuring in a single continuous run), create an ...

6 months ago | 1 | 8 solvers

Solved

Check Euler's characteristic on regular polyhedra
Problem statement Given the number of vertices and the number of faces of a given regular polyhedron, compute the number of its...

7 months ago

Solved

Check Bertrand-Chebyshev's theorem about prime numbers
Historical context Bertrand's postulate, also later known as Chebyshev's theorem, is a very important theorem in number theory ...

8 months ago

Solved

Check Legendre's conjecture
Context and problem statement Legendre's conjecture states for a given positive integer n, there always exists at least one pri...

8 months ago

Solved

Monkey and the Peaches
A monkey picked a certain number of peaches on the first day. Each day, the monkey eats half of the remaining peaches plus one ...

8 months ago

Solved

Product of two multivariate polynomials
MATLAB <https://www.mathworks.com/help/matlab/polynomials.html has a few functions> for creating and manipulating single-variabl...

8 months ago

Solved

Mr. Pyramidad & Ms. Whissy Bolower
Businessman Mr. B. M. Pyramidad was drinking with his new girlfriend Ms. Whissy Bolower. He disclosed to her that he has an ille...

8 months ago

Solved

Numbered lottery balls into cells
You are running a lottery, and have a number of different balls numbered 1 to N. Your job is to figure out how many different w...

8 months ago

Solved

Breaking up a chocolate bar
You've got a chocolate bar of size , and you want to break it up into bite-sized () pieces. How many steps are required to do th...

8 months ago

Solved

Cat's paw - 01
lets imagine a cat, standing on an infinitely long row of tiles. since its a 'cat', string length=3; it takes 3 tiles to stand. ...

8 months ago

Solved

Pumpkin Pie!
It's time for desert at Thanksgiving. You've all gathered at grandma's house, and she's about to start cutting the pumpkin pie. ...

8 months ago

Solved

P(girl likes you | she smiled at you)
Compute the probability Given the input probabilities

8 months ago

Solved

My wife's logic
Its is always the opposite of the causality law, that is to say the implication relationship in math/logic terms : Figure...

8 months ago

Solved

Extra colors
Context In the RGB color system used by Matlab, the color is a 1 x 3 / row vector [R G B] with each value/component R, G, B in ...

8 months ago

Solved

Classify triangles as acute, obtuse, or right
In an acute triangle, the three interior angles are acute, or smaller than 90 degrees. In an obtuse triangle, one angle is obtus...

8 months ago