Prolog translation

PHP:

• random tests do not test for non-string inputs

python new test framework + random tests required. updated in this fork

Please leave an instruction on how to calculate the extrapolation in basketball. Some people do not know much about basketball.

assert_approx_equal or equivalent DELTA comparison should be enforced in all languages

Description should be language-agnostic

C translation (author inactive)

Should specify that if the output is a float, it should be rounded to 1 decimal place.

R Translation added. Please review and take care :).

If the value entered in the function is not a string, well, you know where that variable should be sitting

Cryptic sentences =/= specifications.

No random tests.

The zero case test is only in 'sample' testing: test.assert_equals(nba_extrap(0, 0), 0)
I think it should be in the final testing too.

I think this is unclear - '[][]]]][[[[[[][]', could be ['', '', '[[[[[', ''] and could be ['',']]]','[[[[[','']