Solved

EZ10
EZ

3 months ago

Solved

EZ9
EZ

3 months ago

Solved

EZ8
EZ

3 months ago

Solved

EZ7
EZ

3 months ago

Solved

Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

4 months ago

Solved

Divisible by n, Composite Divisors
Pursuant to <http://www.mathworks.com/matlabcentral/cody/problems/42453-divisible-by-n-prime-vs-composite-divisors Divisible by ...

4 months ago

Solved

Divisible by n, Truncated-number Divisors
Some divisors only require a few numbers at the end of the number in question to determine divisibility, no matter how long. Exa...

4 months ago

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Divisible by n, prime divisors from 20 to 200
Pursuant to the previous problem (linked below), this problem requires a function that checks for divisibility of large numbers ...

4 months ago

Solved

Divisible by n, prime divisors - 11, 13, 17, & 19
Divisibility checks against prime numbers can all be accomplished with the same routine, applied recursively, consisting of add ...

4 months ago

Solved

EZ
EZ

4 months ago

Solved

EZZ
EZZ

4 months ago

Solved

EZ4

4 months ago

Solved

EZ5
EZ5

4 months ago

Solved

EZ6

4 months ago

Solved

Identify points inside a Reuleaux triangle
Write a function to identify points that lie in or on a Realeaux triangle, which is a curve of constant width. The input to the ...

4 months ago

Solved

Determine whether a number is a Ludic prime
Ludic numbers are formed by a sieve. Start with a list of the positive integers. Skip 1 and start with 2. Then delete every seco...

4 months ago

Solved

add
add

4 months ago

Solved

x = 1
x = 1

4 months ago

Solved

Sum along each diagonal of a matrix
Write a routine that returns the sums along the diagonals of a given matrix, A, where the first diagonal is the bottom left corn...

5 months ago

Solved

Find the closest canyon prime
My wife and I celebrated our honeymoon and most recent anniversary in Yellowstone and Grand Teton National Parks. After returnin...

5 months ago

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List composite numbers that do not contain their prime factors as substrings
The number 63 has the prime factorization 3, 3, and 7, and it contains one of them (3) as a substring. In contrast, the number 4...

5 months ago

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Build a block Toeplitz matrix
A symmetric block Toeplitz matrix has the form, where the are compatibly-sized matrices. Write a routi...

5 months ago

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Condition number of Kronecker product
Given NxN matrix A and MxM matrix B, where M,N<=1000, write a routine to compute the condition number of kron(A,B).

5 months ago

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TingTing
Output logical "true" if the input is the answer to luck and money$$$. Otherwise, output logical "false".

5 months ago

Solved

The Prime Days of Christmas
On the first day of Christmas my true love sent to me partridges in a pear tree. On the second day of Christmas my true love s...

5 months ago

Solved

Extract diagonal of sparse quadratic form
Consider the matrix A and vector v given by, A=round(sprand(5e3,1e4,1/1e4*100)*100); v=randi(10,width(A),1); Write a rout...

5 months ago

Solved

2x2 binning of a large sparse matrix
Consider the 20000 x 20000 sparse matrix, A=round(sprand(2e4,2e4,1/1e4*100)*1000); The task is to divide this matrix into 2x...

5 months ago

Solved

Pipeline - Variable-length Input
Design the |gt|(>) method of |function_handle| so that: >> 1 > @sin > @cos ans = 0.666366745392881 >> cos(sin(1...

5 months ago

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area of a square
find the generic solution for an area of a square

5 months ago

Solved

List the partitions of an integer
Several Cody problems deal with partitions of an integer, or the ways an integer can be written as the sum of positive numbers—...

5 months ago