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Stephen Wolfram
SEARCH MATHEMATICA 8 DOCUMENTATION
THIS IS DOCUMENTATION FOR AN OBSOLETE PRODUCT.
SEE THE
DOCUMENTATION CENTER
FOR THE LATEST INFORMATION.
Mathematica
>
Attributes
>
Built-in
Mathematica
Symbol
Modifying Built-in Functions
Tutorials »
|
Protect
Locked
SetOptions
ClearAttributes
See Also »
|
Attributes
More About »
Unprotect
Unprotect
[
s
1
,
s
2
,
...
]
removes the attribute
Protected
for the symbols
s
i
.
Unprotect
["
form
1
", "
form
2
",
...
]
unprotects all symbols whose names textually match any of the
form
i
.
MORE INFORMATION
A typical sequence in adding your own rules for built-in functions is
Unprotect[
f
];
definition
;
Protect
[
f
]
.
EXAMPLES
CLOSE ALL
Basic Examples
(1)
Default behavior:
In[1]:=
Out[1]=
Unprotect and modify the definition:
In[2]:=
In[3]:=
In[4]:=
New behavior:
In[5]:=
Out[5]=
Scope
(2)
Applications
(2)
Properties & Relations
(4)
SEE ALSO
Protect
Locked
SetOptions
ClearAttributes
TUTORIALS
Modifying Built-in Functions
MORE ABOUT
Attributes
New in 1
© 2013 Wolfram Research, Inc.
EXAMPLES
Basic Examples 
Scope 