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+% Copyright 2007 by Till Tantau
+%
+% This file may be distributed and/or modified
+%
+% 1. under the LaTeX Project Public License and/or
+% 2. under the GNU Public License.
+%
+% See the file doc/generic/pgf/licenses/LICENSE for more details.
+
+
+% Guard against reading twice
+\ifx\pgfmathloaded\pgfutil@undefined
+ \let\pgfmathloaded=\relax
+\else
+ \expandafter\endinput
+\fi
+
+% We need keys:
+\ifx\pgfkeysloaded\pgfutil@undefined
+ \input pgfkeys.code.tex
+\fi
+
+\input pgfmathcalc.code.tex
+\input pgfmathfloat.code.tex
+
+\endinput