Source: /cirosantilli/laplace-operator

= Laplace operator
{title2=$\Delta$}
{title2=$\nabla^2$}
{wiki}

= Laplacian
{c}
{synonym}

Can be denoted either by:
* the upper case <Greek letter> <delta>
* <nabla symbol> squared
Our default symbol is going to be:
$$
\laplacian{}
$$