|
MessageName
symbol
::
tag is a name for a message.
You can specify messages by defining values for symbol
::
tag.
symbol
::
tag is converted to MessageName[
symbol
,
"
tag
"]. tag can contain any characters that can appear in symbol names. symbol
::"
tag
" can also be used.
Assignments for s
::
tag are stored in the Messages value of the symbol s.
The following messages for functions are often defined:
?
f prints out the message f
::usage.
When ?
form finds more than one function, only the names of each function are printed.
You can switch on and off messages using On[
s
::
tag
] and Off[
s
::
tag
].
MessageName[
symbol
,
"
tag
",
"
lang
"] or symbol
::
tag
::
lang represents a message in a particular language.
See the Mathematica book: Section 2.8.21.
See also: Message, MessageList, $MessageList.
Further Examples
You can define various tags for functions that you wish to document in some way. Here is a note assigned to the function average.
In[1]:= 
Out[1]= 
Here is the function definition.
In[2]:= 
You can information about the function average in a variety of ways.
In[3]:= 
Global`average
average[list_] := Plus @@ list/Length[list]
In[4]:= 
Out[4]= 
In[5]:= 
Out[5]= 
THIS IS DOCUMENTATION FOR AN OBSOLETE PRODUCT. SEE THE DOCUMENTATION CENTER FOR THE LATEST INFORMATION. | |
