Solved

Make a checkerboard matrix
Given an integer n, make an n-by-n matrix made up of alternating ones and zeros as shown below. The a(1,1) should be 1. Examp...

nästan 7 år ago

Solved

Binary numbers
Given a positive, scalar integer n, create a (2^n)-by-n double-precision matrix containing the binary numbers from 0 through 2^n...

nästan 7 år ago

Solved

Fibonacci sequence
Calculate the nth Fibonacci number. Given n, return f where f = fib(n) and f(1) = 1, f(2) = 1, f(3) = 2, ... Examples: Inpu...

nästan 7 år ago

Solved

Column Removal
Remove the nth column from input matrix A and return the resulting matrix in output B. So if A = [1 2 3; 4 5 6]; and ...

nästan 7 år ago

Solved

Swap the first and last columns
Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All oth...

nästan 7 år ago

Solved

Triangle Numbers
Triangle numbers are the sums of successive integers. So 6 is a triangle number because 6 = 1 + 2 + 3 which can be displa...

nästan 7 år ago

Solved

MATLAB Counter
Write a function f = counter(x0,b) to construct a counter handle f that counts with an initial value x0 and a step size b. E...

nästan 7 år ago

Solved

How to subtract?
*&plusmn &plusmn &plusmn &plusmn &plusmn &plusmn &plusmn &plusmn &plusmn &plusmn &plusmn* * Imagine you need to subtract one...

nästan 7 år ago

Solved

Sums of Multiple Pairs of Triangular Numbers
This is a follow-up to <https://www.mathworks.com/matlabcentral/cody/problems/44289 Problem 44289> - Find two triangular numbers...

nästan 7 år ago

Solved

Is this is a Tic Tac Toe X Win?
For the game of <https://en.wikipedia.org/wiki/Tic-tac-toe Tic Tac Toe> we will be storing the state of the game in a matrix M. ...

nästan 7 år ago

Solved

Van Eck's Sequence's nth member
Return the Van Eck's Sequence's nth member. For detailed info : <http://oeis.org/A181391 OEIS link> and <https://www.theguard...

nästan 7 år ago

Solved

A Simple Tide Gauge with MATLAB
*&#8767 &#8767 &#8767 &#8767 &#8767 &#8767 &#8767 &#8767* You are standing in a few inches of sea water on a beach. You a...

nästan 7 år ago

Solved

Pi Digit Probability
Assume that the next digit of pi constant is determined by the historical digit distribution. What is the probability of next di...

nästan 7 år ago

Solved

Polarisation
You have n polarising filters stacked one on top of another, and you know each axis angle. How much light gets passed through th...

nästan 7 år 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 =...

nästan 7 år 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) ...

nästan 7 år ago

Solved

Breaking Out of the Matrix
Do you want to take the Red Pill, or the Blue Pill? If you take the Blue Pill, you will simply pass along to the next problem...

nästan 7 år ago

Solved

ASCII Birthday Cake
Given an age and a name, give draw an ASCII birthday cake. For example, given the name "CODY" and the age 5, return a string wit...

nästan 7 år ago

Solved

Predicting life and death of a memory-less light bulb
*&#128161 &#128161 &#128161 &#128161 &#128161 &#128161 &#128161 &#128161 &#128161 &#128161 &#128161 &#128161 &#128161 &#128161 &...

nästan 7 år ago

Solved

Pernicious Anniversary Problem
Since Cody is 5 years old, it's pernicious. A <http://rosettacode.org/wiki/Pernicious_numbers Pernicious number> is an integer w...

nästan 7 år ago

Solved

Inscribed Pentagon?
Your function will be provided with the five vertices of a pentagon (p) as well as the center point (cp) and radius (r) of a cir...

nästan 7 år ago

Solved

Circle/Pentagon Overlap
Your function will be provided with the five vertices of a pentagon (p) as well as the center point (cp) and radius (r) of a cir...

nästan 7 år ago

Solved

The Glass Half Full
Identical glasses are placed in a triangular tower structure, such that the top level (L = 1) comprises one glass, the next leve...

nästan 7 år ago

Solved

Basic electricity in a dry situation
&#9889 &#9889 &#9889 &#9889 &#9889 &#9889 &#9889 &#9889 &#9889 &#9889 &#9889 &#9889 &#9889 &#9889 &#9889 &#9889 &#9889 &#9889 &#...

nästan 7 år ago

Solved

Extra safe primes
Did you know that the number 5 is the first safe prime? A safe prime is a prime number that can be expressed as 2p+1, where p is...

nästan 7 år ago

Solved

Pentagonal Numbers
Your function will receive a lower and upper bound. It should return all pentagonal numbers within that inclusive range in ascen...

nästan 7 år ago

Solved

Write c^3 as sum of two squares a^2+b^2
write c^3 as sum of two squares a^2+b^2. a and b must be integer and greater than zero. For example 5^3 = 2^2 + 11^2 5...

nästan 7 år ago

Solved

Octoberfest festival
A group of students decided to visit Octoberfest festival. First they ordered one beer, then after half-hour they taken one more...

nästan 7 år ago

Solved

I Plead the Fifth
Write a function to provide a yes or no answer to the input string. However, it must plead the 5th amendment (return an empty st...

nästan 7 år ago

Solved

Is it really a 5?
A number containing at least one five will be passed to your function, which must return true or false depending upon whether th...

nästan 7 år ago