
This directory contains version 2.01 of Calc, an advanced desk
calculator for GNU Emacs.

"Calc"  Copyright 1990, 1991  Free Software Foundation, Inc.

Written and maintained by:   Dave Gillespie
			     256-80 Caltech
			     Pasadena CA 91125
			     daveg@synaptics.com, uunet!synaptx!daveg
			     or: daveg@csvax.cs.caltech.edu, cit-vax!daveg



From the introduction to the manual:

  "Calc" is an advanced calculator and mathematical tool that runs as
  part of the GNU Emacs environment.  Very roughly based on the HP-28/48
  series of calculators, its many features include:

    * Choice of algebraic or RPN (stack-based) entry of calculations.

    * Arbitrary precision integers and floating-point numbers.

    * Arithmetic on rational numbers, complex numbers (rectangular and
      polar), error forms with standard deviations, open and closed
      intervals, vectors and matrices, dates and times, infinities,
      sets, quantities with units, and algebraic formulas.

    * Mathematical operations such as logarithms and trigonometric functions.

    * Programmer's features (bitwise operations, non-decimal numbers).

    * Financial functions such as future value and internal rate of return.

    * Number theoretical features such as prime factorization and
      arithmetic modulo M for any M.

    * Algebraic manipulation features, including symbolic calculus.

    * Moving data to and from regular editing buffers.

    * "Embedded mode" for manipulating Calc formulas and data directly
      inside any editing buffer.

    * Graphics using GNUPLOT, a versatile (and free) plotting program.

    * Easy programming using keyboard macros, algebraic formulas,
      algebraic rewrite rules, or extended Emacs Lisp.




To install Calc:

  1. Type "uncompress calc-2.01.tar.Z"

  2. Type "tar xvf calc-2.01.tar"

1,2. Alternatively: "zcat calc-2.01.tar.Z | tar xvf -"

  3. Note that the Calc tar file now creates a "calc-2.01" subdirectory
     of the current directory in which to place its files.

  4. Follow the instructions in the file "INSTALL".



Calc is written entirely in Emacs Lisp, for maximum portability.
You do not need to recompile Emacs to install and use Calc.

You will need about six megabytes of disk space to install Calc
and its Info documentation.

See the file INSTALL for installation instructions.  The instructions
may seem long, but on typical systems you will only need to follow the
steps shown in the first section.

Don't even try to run Calc in uncompiled (.el) form!  It's far too slow.


I am anxious to hear about your experiences using Calc.  Send mail to
"daveg@synaptics.com" or "daveg@csvax.cs.caltech.edu".  A bug report is
most useful if you include the exact input and output that occurred,
any modes in effect (such as the current precision), and so on.  If
you find Calc is difficult to operate in any way, or if you have other
suggestions, don't hesitate to let me know.  If you find errors
(including simple typos) in the manual, let me know.  Even if you
find no bugs at all I would love to hear your opinions.

The latest Calc tar files and patches are always available for anonymous
FTP on csvax.cs.caltech.edu [131.215.131.131].  Look in the "pub"
subdirectory.  Calc is also available on prep.ai.mit.edu, and in the
archives of the comp.sources.misc Usenet group.

Thanks,

								-- Dave





Summary of changes to "Calc"
------- -- ------- --  ----


Version 2.01:

 * Added percentage commands `M-%', `b %', and `c %'.

 * Changed Big mode to force radix-10 in superscripts.

 * Improved display of fractions in various language modes.

 * Changed `a n' to work properly with equations and inequalities.

 * The problem with cross references to Index nodes in TeX has been fixed.

 * Fixed a bug where recursive esc-maps make calc-ext/-aent unloadable.

 * Fixed a bug in `M-# k', then `OFF' right away, with fresh Emacs.

 * Fixed a bug in which "S_i_j" was formatted wrong after `j s'.

 * Fixed a bug in which `h k u c' positioned cursor on wrong line.

 * Fixed a bug where `z ?' crashed if `z %' was defined.

 * Fixed a bug in `j O' (calc-select-once-maybe).

 * Fixed "make private" not to ask "Delete excess versions" and crash.


Version 2.00:

 * First complete posting of Calc since 1.01.

 * Most parts of Calc have seen changes since version 1.07.  See
   section "New for Calc 2.00" in the manual for a summary.  In
   the FTP version of the Calc distribution, the file README.prev
   contains a detailed change history from 1.00 up to 2.00.

