[R] gmp::bigq vs. MASS::fractions

[Sigbert Klinke]

Hello,

Am 07.01.23 um 17:55 schrieb Ivan Krylov:
 > What do you need the fractions for?
 >

When writing tasks for statistics exams, I try to avoid non-terminal 
intermediate results. Students might round them and arrive at a final 
result that might be slightly different from the true value. Although 
the exam package supports a tolerance for checking the result, this 
could be problematic. To check if a number is non-terminal, I calculate 
a fraction representation and check if the denominator can be expressed 
by 2^p 5^q.

@Enrico: When I started developing assignments a few years ago, I was 
not familiar with gmp. :(

Thanks Sigbert