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Jean-Marie Sainthillier


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Skinexigence

3.396 total contributions since 2012

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  • Indexing V Master
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  • Indexing III Master
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  • Matrix Patterns III Master
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  • Project Euler I
  • Number Manipulation I Master
  • Strings I Master
  • Matrix Manipulation I Master
  • Number Manipulation II Master

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Test approximations of the prime counting function

alrededor de 16 horas ago

Solved


Evaluate the logarithmic integral
The <https://en.wikipedia.org/wiki/Logarithmic_integral_function logarithmic integral> li(x) plays a role in number theory becau...

alrededor de 16 horas ago

Solved


Play PRIMEGAME

alrededor de 17 horas ago

Solved


Test the generalized Legendre conjecture

1 día ago

Solved


Create a sequence of primes p such that p > n π(p)

1 día ago

Solved


Investigate the frequency of last non-zero digits of primorials

3 días ago

Solved


Determine digits of the Copeland-Erdos constant
<https://www.mathworks.com/matlabcentral/cody/problems/1477-champernowne-constant/solutions/new Cody Problem 1477> asks us to de...

3 días ago

Solved


Identify full reptend primes

4 días ago

Solved


Compute the nth Naerogahtyp emirp

4 días ago

Solved


Determine whether a prime is Pythagorean

5 días ago

Solved


Find jumping medalists

5 días ago

Solved


Sum of series IX

5 días ago

Solved


Sum of series VIII

5 días ago

Solved


Negative without '-'
Simple: return a negative number without using the '-' sign. Thanks to Problem <https://www.mathworks.com/matlabcentral/cody/...

5 días ago

Solved


List the erauqs

6 días ago

Solved


Compute the nth Pythagorean prime
Pythagorean primes have the form p = 4n+1, where n is an integer, and they can be written as the sum of squares of two integers....

7 días ago

Solved


List the emirps

7 días ago

Solved


Investigate the frequency of last digits of prime numbers
The last digit of a prime number greater than 5 can be 1, 3, 7, or 9. If the primes are distributed randomly, then these digits ...

7 días ago

Solved


Calculate the average value of the elements in the array
Calculate the average value of the elements in the array

15 días ago

Solved


Double all elements in the array
Duplicate all elements in the array

15 días ago

Solved


Draw a '0' in a one matrix!

15 días ago

Solved


Triangle Numbers (★★)
(copy of problem 5) Triangle numbers are the sums of successive integers. So 6 is a triangle number because 6 = 1 + 2 + 3...

23 días ago

Solved


Step number
Step number

3 meses ago

Solved


Create times-tables (★★★)
(copy of prob 33) At one time or another, we all had to memorize boring times tables. 5 times 5 is 25. 5 times 6 is 30. 12 ti...

3 meses ago

Solved


Count the number of folds needed to pack a large sheet
In a certain paper factory, large sheets of paper are being made every day. Before sending the sheets for shipment, they have to...

3 meses ago

Solved


Perfect square.
Determine if the input is a perfect square or not. Example - If input is 25, return 1. If input is 17, return 0.

3 meses ago

Solved


Find the slope

3 meses ago

Solved


Matrix Pattern 1

3 meses ago

Solved


Find the density of non-zero values

3 meses ago

Solved


Sum of series
a(n) = n^2 - (n-1)^2 find the summation of the series upto n i.e. a(1)+a(2)+...+a(n)

3 meses ago

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