Why did J.K. Rowling use such odd fractions for wizarding currency subunits?
48540
What is the reason for such a strange exchange rate in the wizard currency in Harry Potter?
42045
Decimal vs Double Speed
149976
What is "magic" about the combination of addition and multiplication in formal arithmetic?
21152
Exactly half of the elements of $\mathcal{P}(A)$ are odd-sized
17211
Is it wrong to tell children that $1/0 =$ NaN is incorrect, and should be $∞$?
124504
How to convert floats to human-readable fractions?
81154
Characterising reals with terminating decimal expansions
65070
Combinations of a penny, nickel, dime, and quarter
132821
Why are floating point numbers printed so differently?
146616
Why is the squared difference so commonly used?
38197
Why did Malfoy rip a page from a book in CoS?
142730
Superscripts appear in various weird places in fractions
28230
What bizarrities lurk within the decimal expansion of an irrational number?
43344
Discrepancy in "Towers of Midnight"
130671
What are the costs of books and materials in Harry Potter?
58570
Is there a sane reason why ¹⁄₁₂₅ is not, instead, exactly half of ¹⁄₆₀?
26058
Why is radian so common in maths?