Sophie Germain prime
In number theory, a prime number p is a *Sophie Germain prime* if 2p + 1 is also prime. For example, 23 is a Sophie Germain prim...
4年弱 前
解決済み
Mersenne Primes vs. All Primes
A Mersenne prime (M) is a prime number of the form M = 2^p - 1, where p is another prime number. <https://www.mathworks.com/matl...
4年弱 前
解決済み
Draw a 'Z'.
Given _n_ as input, generate a n-by-n matrix like 'Z' by _0_ and _1_ .
Example:
n=5
ans=
[1 1 1 1 1
0 0 0 1 ...
4年弱 前
解決済み
Draw a 'X'!
Given n as input Draw a 'X' in a n-by-n matrix.
example:
n=3
y=[1 0 1
0 1 0
1 0 1]
n=4
y=[1 0 0...
4年弱 前
解決済み
Draw 'O' !
Given n as input, generate a n-by-n matrix 'O' using 0 and 1 .
example:
n=4
ans=
[1 1 1 1
1 0 0 1
...
4年弱 前
解決済み
Draw a 'N'!
Given n as input, generate a n-by-n matrix 'N' using 0 and 1 .
Example:
n=5
ans=
[1 0 0 0 1
1 1 0 0 1
1 0 ...
4年弱 前
解決済み
Draw 'J'
Given n as input, generate a n-by-n matrix 'J' using 0 and 1 .
Example:
n=5
ans=
[0 0 0 0 1
0 0 0 0 1
0 0 ...
4年弱 前
解決済み
Draw 'I'
Given n as input, draw a n-by-n matrix 'I' using 0 and 1.
example:
n=3
ans=
[0 1 0
0 1 0
0 1 0]
n=...
4年弱 前
解決済み
Draw 'H'
Draw a x-by-x matrix 'H' using 1 and 0. (x is odd and bigger than 2)
Example:
x=5
ans=
[1 0 0 0 1
1 0 0 0 1
...
4年弱 前
解決済み
Draw 'F'
Draw a x-by-x matrix 'F' using 1 and 0. (x is odd and bigger than 4)
Example:
x=5
ans=
[1 1 1 1 1
1 0 0 0 0
...
4年弱 前
解決済み
Draw 'E'
Draw a x-by-x matrix 'E' using 1 and 0. (x is odd and bigger than 4)
Example:
x=5
ans=
[1 1 1 1 1
1 0 0 0 0
...
4年弱 前
解決済み
Draw 'D'.
Draw a x-by-x matrix 'D' using 0 and 1.
example:
x=4
ans=
[1 1 1 0
1 0 0 1
1 0 0 1
1 1 1 0]
4年弱 前
解決済み
Draw 'B'
Draw a x-by-x matrix 'B' using 1 and 0. (x is odd and bigger than 4)
Example:
x=5
ans=
[1 1 1 1 0
1 0 0 0 1
...
4年弱 前
解決済み
Draw 'C'.
Given x as input, generate a x-by-x matrix 'C' using 0 and 1.
example:
x=4
ans=
[0 1 1 1
1 0 0 0
...
4年弱 前
解決済み
Project Euler: Problem 7, Nth prime
By listing the first six prime numbers: 2, 3, 5, 7, 11, and 13, we can see that the 6th prime is 13.
What is the Nth prime nu...
4年弱 前
解決済み
Area of a pentagon
Given the side of a regular pentagon and its apothem return the area of pentagon.
Remember the area of pentagon is calculate ...
Convert to Binary Coded Decimal
Convert from decimal representation to <http://en.wikipedia.org/wiki/Binary-coded_decimal Binary Code Decimal> (or BCD) represen...
4年弱 前
解決済み
Power Times (of the day)
Many times throughout the day can represent mathematical equations. In this problem, we focus on times that represent powers. Fo...