This is documentation for Mathematica 8, which was
based on an earlier version of the Wolfram Language.
View current documentation (Version 11.1)

Span


represents a span of elements i through j.
i;;
represents a span from i to the end.
;;j
represents a span from the beginning to j.

represents a span that includes all elements.

represents a span from i through j in steps of k.

represents a span from i to the end in steps of k.

represents a span from the beginning to j in steps of k.
;;;;k
represents a span from the beginning to the end in steps of k.
  • is equivalent to Take.
  • can be used to reset a span of elements in a list or other expression.
  • When used in Part, negative i and j count from the end.
Take a span of elements from a list:
Assign to a span of elements:
Assign a sequence of different elements:
Take a span of elements from a list:
In[1]:=
Click for copyable input
Out[1]=
 
Assign to a span of elements:
In[1]:=
Click for copyable input
Out[1]=
In[2]:=
Click for copyable input
Out[2]=
In[3]:=
Click for copyable input
Out[3]=
Assign a sequence of different elements:
In[4]:=
Click for copyable input
Out[4]=
In[5]:=
Click for copyable input
Out[5]=
Negative indices count from the end:
New in 6