$PrePrint is a global variable whose value, if set, is applied to every expression before it is printed.

FractionBox[x, y] is a low-level formatting construct that represents x/y in notebook expressions.

<< name reads in a file, evaluating each expression in it, and returning the last one.

$CompilationTarget gives the default value for the option CompilationTarget of Compile.

A differential system can sometimes be solved by analytic means. The function DSolve implements many of the known algorithmic techniques. However, differential systems that ...

Frame is an option for Graphics, Grid, and other constructs that specifies whether to include a frame.

SixJSymbol[{j_1, j_2, j_3}, {j_4, j_5, j_6}] gives the values of the Racah 6-j symbol.

The ability to generate pseudorandom numbers is important for simulating events, estimating probabilities and other quantities, making randomized assignments or selections, ...

StableDistribution[type, \[Alpha], \[Beta], \[Mu], \[Sigma]] represents the stable distribution S_type with index of stability \[Alpha], skewness parameter \[Beta], location ...

Tanh[z] gives the hyperbolic tangent of z.