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...
4年以上 前
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Prime factor digits
Consider the following number system. Calculate the prime factorization for each number n, then represent the prime factors in a...
4年以上 前
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Proper Factors
Generate the proper factors of input integer x and return them in ascending order. For more information on proper factors, refer...
4年以上 前
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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 ...
4年以上 前
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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...
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)
4年以上 前
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Sum of series VI
What is the sum of the following sequence:
Σk⋅k! for k=1...n
for different n?
4年以上 前
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Sum of series V
What is the sum of the following sequence:
Σk(k+1) for k=1...n
for different n?
4年以上 前
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Sum of series IV
What is the sum of the following sequence:
Σ(-1)^(k+1) (2k-1)^2 for k=1...n
for different n?
4年以上 前
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Sum of series III
What is the sum of the following sequence:
Σ(2k-1)^3 for k=1...n
for different n?
4年以上 前
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Sum of series II
What is the sum of the following sequence:
Σ(2k-1)^2 for k=1...n
for different n?
4年以上 前
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Sum of series I
What is the sum of the following sequence:
Σ(2k-1) for k=1...n
for different n?
4年以上 前
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Rescale Scores
Each column (except last) of matrix |X| contains students' scores in a course assignment or a test. The last column has a weight...
4年以上 前
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Calculate Inner Product
Given two input matrices, |x| and |y|, check if their inner dimensions match.
* If they match, create an output variable |z|...
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Find the Best Hotels
Given three input variables:
* |hotels| - a list of hotel names
* |ratings| - their ratings in a city
* |cutoff| - the rat...
4年以上 前
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Plot Damped Sinusoid
Given two vectors |t| and |y|, make a plot containing a blue ( |b| ) dashed ( |--| ) line of |y| versus |t|.
Mark the minimum...