For more information while running calc, type  help  followed by one of the
following 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
    errorcodes		calc generated error codes
    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
    archive		where to get the latest versions of calc

    full		all of the above

You can also ask for help on a particular function name.  For example,

    help asinh
    help round

or on a particular symbol such as:

    help =

For example:

    help usage

will print the calc command usage information.  One can obtain calc help
without invoking any startup code by running calc as follows:

    calc -q help topic

where 'topic' is one of the topics listed above.

If the -m mode disallows opening files for reading or execution of programs,
then the help facility will be disabled.  See:

    help usage

for details of the -m mode.
