y preserving rotation equivariant operators, including differential operators, common Green&#39;s functions &amp; parametrized neural operators. Supports scalar and vector field convolutions with customizable products eg  <code>dot</code>. Automatically performs convolutions using FFT when it&#39;s faster doing so. Supports possibly nonuniform, nonorthogonal or periodic grids.</p><h2 id="Features"><a class="docs-heading-anchor" href="#Features">Features</a><a id="Features-1"></a><a class="docs-heading-ancho