1
vote
2answers
92 views

Is the index in an nth root allowed to be fractional?

We have nth roots that can be rewritten as fractional powers: $$\sqrt[n] x = x^\frac 1 n$$ I was looking around on Wikipedia and some other online material, but I couldn't find any definitive set of ...
0
votes
3answers
811 views

What is common and widely recognized abbreviations for *Numerator* and *Denominator* terms for Anglophone mathematicians? [closed]

I have a basic notation/convention question. I'm writing a program in Pascal programming language which does computations in the rational number field (ℚ). For that i defined a data type, which ...