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
...
約4年 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]
約4年 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
...
約4年 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
...
約4年 前
解決済み
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...
約4年 前
解決済み
Generalised Hamming Number
Inspired by Project Euler n°204 and Problem 1308 by James
A generalised Hamming number of type n, has no prime factor larger ...
約4年 前
解決済み
Factorize THIS, buddy
List the prime factors for the input number, in decreasing order. List each factor only once, even if the factorization includes...
約4年 前
解決済み
Proper Factors
Generate the proper factors of input integer x and return them in ascending order. For more information on proper factors, refer...
約4年 前
解決済み
Smith numbers
Return true if the input is a Smith number in base ten. Otherwise, return false. Read about Smith numbers at <http://en.wikipedi...
約4年 前
解決済み
Prime factor digits
Consider the following number system. Calculate the prime factorization for each number n, then represent the prime factors in a...
約4年 前
解決済み
Multiples of a Number in a Given Range
Given an integer factor _f_ and a range defined by _xlow_ and _xhigh_ inclusive, return a vector of the multiples of _f_ that fa...
約4年 前
解決済み
Get all prime factors
List the prime factors for the input number, in decreasing order. List each factor. If the prime factor occurs twice, list it as...
約4年 前
解決済み
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...