MangoldtLambda (Built-in Mathematica Symbol)

MangoldtLambda[n] gives the von Mangoldt function \[CapitalLambda](n).

PalettePath (Built-in Mathematica Symbol)

PalettePath is a global option that specifies which directories Mathematica searches for palettes on startup.

Placed (Built-in Mathematica Symbol)

Placed[expr, pos] represents an expression expr placed at relative position pos in a chart or other display. Placed[{e_1, e_2, ...}, pos] places each of the e_i at a relative ...

PrimeNu (Built-in Mathematica Symbol)

PrimeNu[n] gives the number of distinct primes \[Nu](n) in n.

PrimeOmega (Built-in Mathematica Symbol)

PrimeOmega[n] gives the number of prime factors counting multiplicities \[CapitalOmega](n) in n.

StyleSheetPath (Built-in Mathematica Symbol)

StyleSheetPath is a global option that specifies which directories Mathematica searches to find stylesheets.

Use the Virtual Book (Mathematica How To)

The Virtual Book is a browsable electronic collection of all the Mathematica tutorials, grouped according to functionality. It is an excellent place for users of all levels ...

Format > Style (Mathematica Menu Item)

Style assigns a style to selected cells or text.

Format > Stylesheet (Mathematica Menu Item)

Stylesheet assigns a stylesheet to the current notebook.

Grids, Rows, and Columns (Mathematica Overview)

The Basic Constructs Classes of Functionality Options Syntax