In

In[n] is a global object that is assigned to have a delayed value of the n input line.

Typing In[n] causes the n input line to be re-evaluated.

In[ ] gives the last input line.

In[-k] gives the input k lines back.

See Section 1.2.1, Section 1.3.3, Section 1.3.3 and Section 2.14.1.

See also: InString, Out, $Line, $HistoryLength.

New in Version 1.

Further Examples