InverseFunction[f] represents the inverse of the function f, defined so that InverseFunction[f][y] gives the value of x for which f[x] is equal to y. InverseFunction[f, n, ...
DisplayFunction is an option for graphics and sound functions that specifies a function to apply to graphics and sound objects before returning them.
NormalsFunction is an option for Plot3D and related functions that specifies a function to apply to determine the effective surface normals at every point.
$DisplayFunction gives the default setting for the option DisplayFunction in graphics functions.
ExponentFunction is an option for NumberForm and related functions that determines the exponent to use in printing approximate real numbers.
StreamColorFunction is an option for StreamPlot and related functions that specifies a function to apply to determine colors along streamlines.
VectorColorFunction is an option for VectorPlot and related functions which specifies a function to apply to determine colors of field vectors drawn.
DistanceFunction is an option for functions such as Nearest that specifies the distance value to assume between any two specified points.
ColorFunction is an option for graphics functions that specifies a function to apply to determine colors of elements.
RegionFunction is an option for plotting functions that specifies the region to include in the plot drawn.