Solved

Outer product of multiple vectors

In tensor algebra, it is often useful to define a tensor as a product of lower order tensors. Similarly, a multidimensional arra...

alrededor de 2 meses ago

Solved

Combined Ages 4 - Non-symmetric with multiples, n ≥ 3

This problem is slightly more difficult than <http://www.mathworks.com/matlabcentral/cody/problems/42383-combined-ages-3-non-sym...

alrededor de 2 meses ago

Solved

Alternate list of elements

Write a function that combines two lists by alternating the elements, e.g. ['a','b','c'], ['1','2','3'] → 'a1b2c3'.

alrededor de 2 meses ago

Solved

Frugal number

check whether n is a frugal number * a frugal number is a natural number in a given number base that has more digits than the...

alrededor de 2 meses ago

Solved

Last non-zero digit

Given a number n, find the last non-zero digit of the factorial of that number. You need to take care of the large values of n....

alrededor de 2 meses ago

Solved

Restricted Addition v2

This problem is <https://www.mathworks.com/matlabcentral/cody/problems/45252 Restricted Addition v1> with more restrictions. ...

alrededor de 2 meses ago

Solved

Find the sequence

Find the nth number of a sequence. Check the test suite to determine the sequence. * hint: it is closely related to familiar ...

alrededor de 2 meses ago

Solved

Pell numbers

Find the nth pell number <https://en.wikipedia.org/wiki/Pell_number>

alrededor de 2 meses ago

Solved

Restricted Addition

Add two numbers without use of common arithmetic operations. Unfortunately, in order to enforce this restriction, other restrict...

alrededor de 2 meses ago

Solved

String count

given a string 'str', count the number of the followings - * letters * digits * white space * capital letters * smal...

alrededor de 2 meses ago

Solved

Tell your secret

A secret can be told only to 2 persons in 5 minutes. Now these 2 more persons can spread the secret to 4 other people. this way ...

alrededor de 2 meses ago

Solved

Aquiles y la tortuga

Contaba Zenón en su famosa paradoja que un día Aquiles, el guerrero griego más veloz de la Hélade, se enfrentó a una pequeña tor...

2 meses ago

Solved

Count digits

Count total number of digits from 1 to n. * n=13 * output=17 since from [1-9] total 9 digits.[10-13] total 4*2=8 digits.

2 meses ago

Solved

String to Binary Representation

Given a string, convert it using UTF-8 into a binary array where each character or byte is arraigned low to high. For example: ...

2 meses ago

Solved

Binary Array to Hex Representation

Given a binary array of bytes (lsb to msb), convert it into a hexadecimal representation (msb to lsb). For example: Input: [1 ...

2 meses ago

Solved

How many Christmas presents under the tree?

For many families at Christmas, each family member gives 1 present to every other family member. The main exception is that chil...

2 meses ago

Solved

Check if number is a square number

Test if integer i is a square number. Return logical true if it is.

2 meses ago

Solved

Calculate Euler's phi function

Compute the Euler's phi function of a large integer. For more information about this topic please visit: <https://en.wikiped...

2 meses ago

Solved

An Ohm's Law Calculator

*BACKGROUND / MOTIVATION:* Many important observations in math and science can be described by short, but powerful, equations...

2 meses ago

Solved

Generate Golomb's sequence

Generate Golomb's sequence up to the given number. If n=4, then seq = [1, 2, 2, 3, 3, 4, 4, 4] If n=6, then s...

2 meses ago

Solved

generate the matrix

given 3 inputs e.g [2,3,4] -- generate a matrix like below -- [2 2 0 0 0 0 0 0 0; 2 2 0 0 0 0 0 0 0; 0 0 3 3 3 0 0 0 0; 0 0...

2 meses ago

Solved

Recurring Cycle Length (Inspired by Project Euler Problem 26)

Preface: This problem is inspired by <http://projecteuler.net/problem=26 Project Euler Problem 26> and uses text from that quest...

2 meses ago

Solved

Determine if input is a Narcissistic number

<http://en.wikipedia.org/wiki/Narcissistic_number Narcissistic number> is a number that is the sum of its own digits each raised...

3 meses ago

Solved

Determine if input is a perfect number

A <http://en.wikipedia.org/wiki/Perfect_number/ perfect number> occurs whent the sum of all divisors of a positive integer, exce...

3 meses ago

Solved

Numbers with prime factors 2, 3 and 5.

Make a function which takes one positive integer n and returns a matrix with the numbers of the form (2^i)*(3^j)*(5^k) which are...

3 meses ago

Solved

Calculating large fibonacci numbers

The fibonacci sequence starts 1,1,2,3,5,8... Find the the n'th fibonacci number. Then calculate round(log10( . )) of that n't...

3 meses ago

Solved

cofactor matrix

given a matrix, find its cofactor matrix https://en.wikipedia.org/wiki/Minor_(linear_algebra)#Inverse_of_a_matrix

3 meses ago

Solved

Project Euler: Problem 4, Palindromic numbers

A palindromic number reads the same both ways. The largest palindrome made from the product of two 2-digit numbers is 9009 = 91 ...

3 meses ago