%*=%                    Multiply In Place
%+=%                    Add In Place
%-=%                    Subtract In Place
%.*=%                   Matrix Multiplication In Place
%/=%                    Divide In Place
%^=%                    Power In Place
Extract                 Extract or Replace Parts of a Referenced Object
Methods                 S3 Methods for Automatic Dereferencing
decr                    Decrease Value In Place
deref                   Dereference Object
getEnv                  Extract or Set Reference Environment
getIndex                Extract or Set Slice Index
getSym                  Extract or Set Reference Symbol
incr                    Increment Value In Place
is.nullref              Is Reference Null?
is.ref                  Is Object a Reference?
iter.ref                Convert Reference to Iterable Object
match_cond.ref          Check and Evaluate Match Condition
modify_by               Modify an Object In Place
ref                     Create Reference to an Object
ref_list                Create A List of References
slice                   Create a Reference Slice to a Vector
sref                    Create a Safer Reference to an Object
sslice                  Create a Safer Reference Slice to a Vector
