NumberPoint is an option for NumberForm and related functions which gives the string to use as a decimal point.
OutputStream["name", n] is an object that represents an output stream for functions such as Write.
ReadProtected is an attribute that prevents values associated with a symbol from being seen.
ReleaseHold[expr] removes Hold, HoldForm, HoldPattern, and HoldComplete in expr.
RotationAction is an option for three-dimensional graphics functions that specifies how to render 3D objects when they are interactively rotated.
SaveDefinitions is an option to Manipulate and related functions that specifies whether current definitions relevant for the evaluation of the expression being manipulated ...
ShrinkingDelay is an option for dynamic objects that specifies how long to delay before shrinking the size of the region in which the object is displayed to the actual size ...
SignPadding is an option for NumberForm and related functions that specifies whether padding should be inserted after signs.
SynchronousInitialization is an option for Manipulate, DynamicModule, and related functions that specifies whether or not to evaluate the expression given as the setting for ...
TraceOriginal is an option for Trace and related functions which specifies whether to test the form of each expression before its head and arguments are evaluated.