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Fri Mar 25 19:56:38 2011 UTC (9 years, 6 months ago) by jhr
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  Updating documentation
%!TEX root = report.tex
\chapter{The Diderot Basis Environment}

% polymorphic function 
\newcommand{\PFNSPEC}[4]{\item[\normalfont{$\mathtt{#1} : (#2) #3 \rightarrow #4$}]\mbox{}\\}
\newcommand{\FNSPEC}[3]{\item[\normalfont{$\mathtt{#1} : #2 \rightarrow #3$}]\mbox{}\\}

\section{Overloaded operators}

\section{Other operators}

    returns the principal value of the arc tangent of $\frac{y}{x}$,
    using the signs of both arguments to determine the quadrant of the return
    returns the cosine of its argument (measured in radians).
    loads the named image file, which should be a Nrrd file.
    Note that this function may only be used in the global initialization part of a Diderot
    returns the minimum of its two arguments.
    returns the maximum of its two arguments.
    returns the first argument raised to the power of the second argument.
    returns the sine of its argument (measured in radians).
    returns the square root of its argument.
    returns the tangent of its argument (measured in radians).

Diderot knows about a number of standard convolution kernels, which are described in the
following table:
  \begin{tabular}{r@{ \texttt{:} }lp{3.5in}}
    \multicolumn{2}{c}{\textbf{Specification}} & \textbf{Description} \\ \hline
    \texttt{bspln3} & \kw{kernel\#}\texttt{2} & cubic bspline reconstruction (does not interpolate) \\
    \texttt{bspln5} & \kw{kernel\#}\texttt{4} & quintic bspline reconstruction (does not interpolate) \\
    \texttt{ctmr} & \kw{kernel\#}\texttt{1} & Catmull-Rom interpolation \\
    \texttt{tent} & \kw{kernel\#}\texttt{0} & linear interpolation \\ \hline

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