Are Mjaavatten

Last seen: Today

508 total contributions since 2015

Retired physicist with background in the petroleum and process industry. My main interests are mathematical modelling, numerical methods, and thermodynamics.

Contact

Are Mjaavatten's Badges

View all

Solved

Highest building

3 dagen ago

Solved

Add 100

3 dagen 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...

3 dagen 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....

4 dagen ago

Solved

Champernowne Constant
The <http://en.wikipedia.org/wiki/Champernowne_constant Champernowne constant> is a real number whose digits in decimal represen...

4 dagen ago

Solved

Is it an Armstrong number?
An Armstrong number of three digits is an integer such that the sum of the cubes of its digits is equal to the number itself. Fo...

6 dagen ago

Solved

Lychrel Number Test (Inspired by Project Euler Problem 55)
The task for this problem is to create a function that takes a number _n_ and tests if it might be a Lychrel number. This is, re...

6 dagen ago

Solved

Ordinal numbers
Given an integer n, return the corresponding ordinal number as a character string. For example, ord(1)='1st' ord(2)=...

6 dagen 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...

6 dagen 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...

6 dagen ago

Solved

Fangs of pseudo-vampire number
given a number, find all the fangs of that number. A pseudo-vampire number can have multiple of fangs. The output should be a...

6 dagen ago

Solved

Kaprekar numbers
Test if the input is a Kaprekar number: <http://mathworld.wolfram.com/KaprekarNumber.html>. Return a logical true or false. ...

8 dagen ago

Solved

Parasitic numbers
Test whether the first input x is an n-parasitic number: <http://en.wikipedia.org/wiki/Parasitic_number>. ( _n_ is the second in...

8 dagen ago

Solved

Woodall number
Test whether the input is a Woodall number: <http://en.wikipedia.org/wiki/Woodall_number> _Please do not cheat by simply chec...

8 dagen ago

Solved

Find all vampire fangs
A <http://en.wikipedia.org/wiki/Vampire_number vampire number> is a number v that is the product of two numbers x and y such th...

8 dagen ago

Solved

Fangs of a vampire number
A <http://en.wikipedia.org/wiki/Vampire_number vampire number> is a number v that is the product of two numbers x and y such tha...

9 dagen ago

Solved

Find vampire numbers
A <http://en.wikipedia.org/wiki/Vampire_number vampire number> is a number v that is the product of two numbers x and y such th...

9 dagen ago

Solved

generate nth pentatope number
https://en.wikipedia.org/wiki/Pentatope_number

10 dagen ago

Solved

check whether a number is a pentatope number
<https://oeis.org/A000332>

10 dagen ago

Solved

Cantor counting
Find the nth cantor's rational number. the sequence is given below in the link. Sequence: 1/1,1/2,2/1,3/1,2/2,1/3,1/4... ... .....

10 dagen ago

Solved

find nth even fibonacci number
1st even fibonacci number=2 ; 2nd even fibonacci number=8 ..

11 dagen ago

Solved

Bell Triangle
Form the bell triangle upto nth bell number posotion; * if n=5 * y= [1 0 0 0 0; 1 2 0 0...

11 dagen ago

Solved

Be happy
check whether the given number is happy in b-base. * A happy number can be defined as a number which will yield 1 when it is ...

12 dagen 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...

12 dagen ago

Solved

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

13 dagen ago

Solved

Pseudo-vampire number
refer to <https://en.wikipedia.org/wiki/Vampire_number> Given a number x, determine whether it is a pseudo-vampire number. ...

13 dagen ago

Solved

Evil Number
Check if a given natural number is evil or not. Read more at <https://oeis.org/A001969 OEIS>.

13 dagen ago

Solved

Modify subscripts - easier
MATLAB supports object-oriented programming. Let's take an advantage of it in cody. This problem focus on modifying subscript...

14 dagen ago

Solved

Find x rows where the sum of the numbers is the maximum

16 dagen ago

Solved

write down a script that gives us like the following example:)

16 dagen ago