A graph of the <a href="https://en.wikipedia.org/wiki/Airy_function" class="extiw" title="w:Airy function">Airy functions</a>, <i>Ai(x)</i> and <i>Bi(x)</i> over x=(-15,5).
<a href="//commons.wikimedia.org/wiki/User:Inductiveload" title="User:Inductiveload">Inductiveload</a>
self-made, Mathematica and Inkscape