WolframLang: FullForm Syntax

What is FullForm

WolframLang has a purely nested syntax, called FullForm, similar to lisp.

FullForm syntax are like this:

• f
• f[]
• f[a]
• f[a, b]
• f[a, b, c, etc]

and the head f, can also grow sequentially:

• f[]
• f[][]
• f[][][]
• etc

• f[a][b]
• f[a][b][etc]
• f[a1, a2, etc][b1, b2, etc][etc]
• etc

each of the f, a, b, c is a Atomic Expression.

Convert Expression to FullForm

You can type

FullForm[Hold[expr]]

to see the fully nested form of any WolframLang code.