Where or how do I find the documentation for a given Latex command?
For example, in R I get the documentation for
?mean or at the manual pages http://stat.ethz.ch/R-manual/R-patched/library/base/html/mean.html. In Java there are the Javadocs to tell me what parameters a method takes an what it returns.
What about LaTeX? If I want to know how to use the
\caption command, for example, where is its documentation?
Every time I face a problem, I Google it up and get some blog, StackExchange or else that solves my problems but I never get to the formal documentation of a command so I never actually know why something works the way it does!