ClearAll

ClearAll[symb1,symb2,…]

clears all values, definitions, attributes, messages, and defaults associated with symbols.

ClearAll["form1","form2",…]

clears all symbols whose names textually match any of the formi.

Examples

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Basic Examples  (1)

Define values and attributes for a symbol:

In[1]:=
Click for copyable input
In[2]:=
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Out[2]=

Clear values and attributes:

In[3]:=
Click for copyable input
In[4]:=
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Out[4]=

Scope  (4)

Generalizations & Extensions  (2)

Applications  (2)

Properties & Relations  (2)

Possible Issues  (1)

Neat Examples  (1)

Introduced in 1988
(1.0)