+(defvar var-DUMMY)
+(defvar var-DUMMY2)
+(defvar var-PlotRejects)
+
+;; The following variables are local to calc-graph-plot, but are
+;; used in the functions calc-graph-compute-2d, calc-graph-refine-2d,
+;; calc-graph-recompute-2d, calc-graph-compute-3d and
+;; calc-graph-format-data, which are called by calc-graph-plot.
+(defvar calc-graph-yvalue)
+(defvar calc-graph-yvec)
+(defvar calc-graph-numsteps)
+(defvar calc-graph-numsteps3)
+(defvar calc-graph-xvalue)
+(defvar calc-graph-xvec)
+(defvar calc-graph-xname)
+(defvar calc-graph-yname)
+(defvar calc-graph-xstep)
+(defvar calc-graph-ycache)
+(defvar calc-graph-ycacheptr)
+(defvar calc-graph-refine)
+(defvar calc-graph-keep-file)
+(defvar calc-graph-xval)
+(defvar calc-graph-xlow)
+(defvar calc-graph-xhigh)
+(defvar calc-graph-yval)
+(defvar calc-graph-yp)
+(defvar calc-graph-xp)
+(defvar calc-graph-zp)
+(defvar calc-graph-yvector)
+(defvar calc-graph-resolution)
+(defvar calc-graph-y3value)
+(defvar calc-graph-y3name)
+(defvar calc-graph-y3step)
+(defvar calc-graph-zval)
+(defvar calc-graph-stepcount)
+(defvar calc-graph-is-splot)
+(defvar calc-graph-surprise-splot)
+(defvar calc-graph-blank)
+(defvar calc-graph-non-blank)
+(defvar calc-graph-curve-num)
+