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Re: st: how to express Pi in stata
At 09:45 AM 12/10/2006, Philipp Rehm wrote:
di c(pi)
Also
di _pi
It may also be helpful to check out
help _variables
From the first part of the help:
Expressions may also contain _variables (pronounced "underscore
variables"). These are built in system variables that are created
and updated by Stata. They are called _variables because their names
all begin with the underscore '_' character.
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