apply

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apply

$\begin{usage} apply(L, x)\\ L~x \end{usage}$

Signature

apply: (%, R) $\to$ R

$\begin{params} {\em L} & \% & A differential operator\\ {\em x} & R & A ring element\\\end{params}$

$\begin{retval} Returns \begin{displaymath} L x = \sum_{i=0}^n a_i x^{(i)} \end{displaymath}where $L = \sum_{i=0}^n a_i \partial^i$. \end{retval}$

Manuel Bronstein 2000-12-13