Be careful, I've implemented the sieve, but not all versions of it are sufficiently fast to handle the biggest numbers in the test suite.
This doesn't use primes(x),but still feels a little like cheating.
The whole point of using the sieve is not knowing which numbers are prime. So it is no different than sum(primes).
Swap the first and last columns
Generate N equally spaced intervals between -L and L
Sophie Germain prime
kmph to mps
Convert a Cell Array into an Array
Replicate elements in vectors
BLOCK x3 (Version 3)
Two functions (to be sure)
Find files with extension ext in the current directory
Longest Collatz Sequence
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