Mathematica 9 is now available
THIS IS DOCUMENTATION FOR AN OBSOLETE PRODUCT.
SEE THE DOCUMENTATION CENTER FOR THE LATEST INFORMATION.
Wolfram Mathematica Documentation Center
DOCUMENTATION CENTER SEARCH
New to Mathematica? Find your learning path »
Mathematica > Core Language > Rules & Patterns > Patterns > RepeatedNull (...) >
BUILT-IN MATHEMATICA SYMBOLTutorials »|See Also »|More About »

RepeatedNull

p... or RepeatedNull[p]
is a pattern object that represents a sequence of zero or more expressions, each matching p.
MORE INFORMATION
  • p... can appear as an argument of any function. It represents any sequence of arguments.
  • All the objects in the sequence represented by p... must match p, but the objects need not be identical.
  • The expression p may, but need not, itself be a pattern object.
EXAMPLESCLOSE ALL
Basic Examples   (2)
Replace any list of zero or more 's by :
Replace any list of zero or more 's with one argument:
Replace any list of zero or more 's by :
In[1]:=
Click for copyable input
Out[1]=
 
Replace any list of zero or more 's with one argument:
In[1]:=
Click for copyable input
Out[1]=
New in 1
Ask a question about this page  |  Suggest an improvement  |  Leave a message for the team
Format:   HTML  |  CDF