In most cases, you want the head f of a Mathematica expression like f[x] to be a single symbol. There are, however, some important applications of heads that are not symbols. ...

MathLM Mathematica

 

Mathematica provides many options for styling the cells that appear in notebooks. Some of the more common styling options are available directly from the Format menu. All ...

Mathematica allows any front end command to be executed programmatically from within the kernel by sending an appropriate front end token. There are tokens for all standard ...

Mathematica allows any front end command to be executed programmatically from within the kernel by sending an appropriate front end token. There are tokens for all standard ...

Mathematica's scheduled tasks provide a way to set evaluation of arbitrary expressions in the future. Tasks can be scheduled for one-time evaluation, or for repeated ...

MIME type: chemical/seq-aa-fasta, chemical/seq-na-fasta FASTA molecular biology format. Standard format for storing and exchanging DNA and protein sequences. Plain text ...

_or Blank[] is a pattern object that can stand for any Mathematica expression. _h or Blank[h] can stand for any expression with head h.

Center is a symbol that represents the center for purposes of alignment and positioning.