Replace (Built-in Mathematica Symbol)

Replace[expr, rules] applies a rule or list of rules in an attempt to transform the entire expression expr. Replace[expr, rules, levelspec] applies rules to parts of expr ...

RuleDelayed (Built-in Mathematica Symbol)

lhs :> rhs or lhs :> rhs represents a rule that transforms lhs to rhs, evaluating rhs only after the rule is used.

Rule (Built-in Mathematica Symbol)

lhs -> rhs or lhs -> rhs represents a rule that transforms lhs to rhs.

ScrollingOptions (Built-in Mathematica Symbol)

ScrollingOptions -> {opt_1 -> val_1, opt_2 -> val_2, ...} is an option for notebooks that specifies settings for scrolling.

SphericalBesselJ (Built-in Mathematica Symbol)

SphericalBesselJ[n, z] gives the spherical Bessel function of the first kind j_n (z).

StringInsert (Built-in Mathematica Symbol)

StringInsert["string", " snew", n] yields a string with " snew" inserted starting at position n in " string". StringInsert["string", " snew", -n] inserts at position n from ...

SubsuperscriptBox (Built-in Mathematica Symbol)

x_y^z is the low-level box representation for x_y^z in notebook expressions.

Timing (Built-in Mathematica Symbol)

Timing[expr] evaluates expr, and returns a list of the time in seconds used, together with the result obtained.

Combinatorial Functions (Mathematica Tutorial)

Combinatorial functions. The factorial function n! gives the number of ways of ordering n objects. For non-integer n, the numerical value of n! is obtained from the gamma ...

Defining Functions (Mathematica Tutorial)

There are many functions that are built into Mathematica. This tutorial discusses how you can add your own simple functions to Mathematica. As a first example, consider ...