Rest
(Built-in Mathematica Symbol) Rest[expr] gives expr with the first element removed.
HoldRest is an attribute which specifies that all but the first argument to a function are to be maintained in an unevaluated form.
NHoldRest is an attribute which specifies that all but the first argument to a function should not be affected by N.
Drop
(Built-in Mathematica Symbol) Drop[list, n] gives list with its first n elements dropped. Drop[list, -n] gives list with its last n elements dropped. Drop[list, {n}] gives list with its n\[Null]^th ...
Picking out elements of lists. We will use this list for the examples. Here is the last element of t.
## represents the sequence of arguments supplied to a pure function. ## n represents the sequence of arguments supplied to a pure function, starting with the ...
Pure functions. When you use functional operations such as Nest and Map, you always have to specify a function to apply. In all the examples above, we have used the "name" of ...
Any Mathematica symbol can have both a variety of types of values, and a variety of independently settable attributes that define overall aspects of its behavior.
Mathematica normally takes any expression it is given, and evaluates it as far as possible. But built into the Mathematica language is a collection of flexible primitives ...
First
(Built-in Mathematica Symbol) First[expr] gives the first element in expr.