For more information while running calc, type  help  followed by one of thefollowing topics:	topic		description	-----		-----------	intro		introduction to calc	overview	overview of calc	help		this file	assoc		using associations	builtin		builtin functions	command		top level commands	config		configuration parameters	define		how to define functions	environment	how environment variables effect calc	expression	expression sequences	file		using files	history		command history	interrupt	how interrupts are handled	list		using lists	mat		using matrices	obj		user defined data types	operator	math, relational, logic and variable access operators	statement	flow control and declaration statements	stdlib		description of some lib files shipped with calc	types		builtin data types	usage		how to invoke the calc command	variable	variables and variable declarations	bindings	input & history character bindings	altbind		alternative input & history character bindings	changes		recent changes to calc	libcalc		using the arbitrary precision routines in a C program	stdlib		standard calc library files and standards	bugs		known bugs and mis-features	todo		needed enhancements and wish list	credit		who wrote calc and who helped	full		all of the aboveFor example:	help usagewill print the calc command usage information.  One can obtain calc helpwithout invoking any startup code by running calc as follows:	calc -q help topicwhere 'topic' is one of the topics listed above.