Possible Duplicate:
Where do I find out how a command/environment is defined?
Macro find tool

When I am reading the other's LaTeX codes, I always find new commands I have never read before of.

Is there any method to search for the command I want to know?

marked as duplicate by Stephan Lehmke, TH., Andrew Swann, Werner, Thorsten Dec 14 '12 at 17:39

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

Browse other questions tagged or ask your own question.