Background [TL;DR]
In Difference between Ornstein-Uhlenbeck, Vasicek and Geometric Mean Reversion, the radicals in these two equations
$$S_{T,i}=\exp\left(\ln(S_0)e^{-\alpha T}+\left(\theta-\frac{\sigma^2}{4\alpha}\right)(1-e^{-\alpha T})+\sqrt{(1-e^{-2\alpha T})\frac{\sigma^2}{2\alpha}}\epsilon_i\right)$$ and $$\ln(X_{t})=\ln(X_{t-1})e^{-\theta \Delta t}+\left(\mu-\frac{\sigma^2}{2\alpha}\right)(1-e^{-\theta \Delta t})+\sigma\sqrt{\frac{1}{2\alpha}(1-e^{-2\theta \Delta t})}\epsilon_i$$ doesn't look good as the superscript and the square root overlaps.
MWE (min. working example)
$\sqrt{a^2}$
gives $\sqrt{a^2}$.
Technical info
- My browser: Opera 71.0.3770.198
- My OS: Ubuntu 20.04 LTS (upgraded from 18.04 LTS)
Raison d'être
The overlapping and/or lack of vertical space between the radical sign and the superscript/numerator make reading difficult. Imagine that we have the square root of $e$ to the power $\overline{X}$ $\sqrt{e^\overline{X}}$
$\sqrt{e^\overline{X}}$. That would create confusion in reading.
Screenshot
I'm sure that's a problem in the MathJax library as I can't reproduce this using pdf$\rm\LaTeX$.
Opera vs Firefox: the later renders the math normally
From the comments, it seems that it's a browser-specific problem. Thanks for feedback.