# HH

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Solved

Primitive Root Modulo n

Given a positive integer n > 2, return a vector, v, of positive integers smaller than n that are primitive roots modulo n. If no...

5 months ago

Problem

Primitive Root Modulo n

Given a positive integer n > 2, return a vector, v, of positive integers smaller than n that are primitive roots modulo n. If no...

5 months ago | 1 | 5 solvers

Solved

Find nearest prime number less than input number

Find nearest prime number less than input number. For example: if the input number is 125, then the nearest prime number whi...

6 months ago

Solved

Snakes and Ladders: Variable Die

This problem is a sequal to Problem 59132 Snakes and Ladders: Average Number of Turns. Instead of a 6-sided die, your function ...

6 months ago

Solved

Snakes and Ladders: Average Number of Turns

In this problem, you will play a single-player variant of the classic game Snakes and Ladders. The rules are as follows: The pl...

6 months ago

Problem

Snakes and Ladders: Variable Die

This problem is a sequal to Problem 59132 Snakes and Ladders: Average Number of Turns. Instead of a 6-sided die, your function ...

6 months ago | 1 | 4 solvers

Problem

Snakes and Ladders: Average Number of Turns

In this problem, you will play a single-player variant of the classic game Snakes and Ladders. The rules are as follows: The pl...

6 months ago | 0 | 4 solvers

Solved

Find the jerk

No, it's not the author of this problem... Jerk is the rate of change in acceleration over time of an object. So, if given t...

9 months ago

Solved

Bernoulli's Equation

Bernoulli's equation states that for an incompressible fluid the following summation is constant across the flow: v^2/2 + g*z + ...

9 months ago

Solved

Split Even Number Into Two Primes

Given an even whole number n (> 2), return a 2-element vector of primes, p, such that p(1) + p(2) = n. Fun note: technically it...

9 months ago

Solved

Find matching string from a list of strings

Write a function that returns a string that is a unique match (if it exists) of the string inStr from a list of strings strList....

10 months ago

Solved

Calculate the square root

Given an input integer x, calculate the square root without using the sqrt function.

11 months ago

Solved

Convert Volume Mixing Ratio to Density

The partial pressure of a constituent gas species of the atmosphere can be expressed in parts per million by volume. For exampl...

11 months ago

Solved

SatCom #6: Inclination of a Sun-Synchronous Orbit

Satellite and Space Engineering - Problem #5 This is part of a series of problems looking at topics in satellite and space comm...

11 months ago

Solved

What gear ratio does the cyclist need?

A cyclist (perhaps including our famed Codysolver the cyclist <http://www.mathworks.com/matlabcentral/cody/players/1841757-the...

11 months ago

Solved

Minimum number of crossings in a complete graph

This problem is related to problem 58384. A complete graph may be drawn in different ways, such that the number of line crossin...

11 months ago

Problem

Minimum number of crossings in a complete graph

This problem is related to problem 58384. A complete graph may be drawn in different ways, such that the number of line crossin...

11 months ago | 1 | 8 solvers

Solved

Minimum number of crossings in a complete bipartite graph

A complete bipartite graph may be drawn in different ways, such that the number of line crossings differs between drawings. To ...

11 months ago

Problem

Minimum number of crossings in a complete bipartite graph

This problem is related to problem 58389. A complete bipartite graph may be drawn in different ways, such that the number of li...

11 months ago | 0 | 8 solvers

Solved

Radius of an inner N-dimensional sphere

A hypercube is an N-dimensional analogue of a square (N=2). Similarly, an N-sphere is an N-dimensional analogue of a circle. Not...

11 months ago

Problem

Radius of an inner N-dimensional sphere

A hypercube is an N-dimensional analogue of a square (N=2). Similarly, an N-sphere is an N-dimensional analogue of a circle. Not...

1 year ago | 1 | 5 solvers

Solved

Recaman Sequence - III

I want to create a Recaman sequence where there is a "1" in the n-th position. So from which integer should I start the Recaman ...

1 year ago

Solved

Recaman Sequence - II

Take an arbitrary starting point as input and create Recaman Sequence. Then find the 1, return its index. For example: if n =...

1 year ago

Solved

Recaman Sequence - I

Recaman Sequence (A005132 - <http://oeis.org/A005132 - OEIS Link>) is defined as follow; seq(0) = 0; for n > 0, seq(n) ...

1 year ago

Solved

A Binary Search

One way to locate a target value in a sorted array, is to use a binary search algorithm. Here, you test if the midpoint in the a...

1 year ago

Solved

The Yellowstone Permutation

The Yellowstone Permutation is a sequence of positive integers, defined by the following rules: No term is repeated. Given n t...

1 year ago