Hello,
if I put a (textstyle) fraction into the denominator of a textstyle fraction, the output of the fraction is to huge. An example could be <math>a(0,0) = \tfrac{1}{\left(2\pi\right)^{\tfrac{n}{2}}}</math>. I found it on the wikipedia page https://de.wikipedia.org/wiki/Oszillierendes_Integral . I added also a Screenshot.
I'm using the latest version of Mozilla Firefox, my operating system is Windows 10.
Best reguards
Christian