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ADD(1)			    General Commands Manual			ADD(1)

NAME
       add - full-screen editing calculator

USAGE
       add [options] [file-specifications]

SYNOPSIS
       Add is a	fixed-point calculator that operates as	a full-screen editor.

DESCRIPTION
       Add  performs  fixed-point  computation.	  It  is designed for use as a
       checkbook or expense-account balancing tool.

       Add maintains a running result for each operation.  You may  scroll  to
       any position in the expression list and modify the list.	 Enter data by
       typing numbers (with optional decimal point), separated by operators.

       An output transcript may	be saved and  reloaded	for  further  editing.
       Scripts	are  loaded  from  left	 to right (with	the "output" processed
       first).

OPTIONS
       Command line options of add are:

       -h     Prints the list of options.

       -i interval
	      Sets compounding interval	for interest computation.

       -o script
	      Specify file in which to save output transcript.

       -p num Sets precision (number of	digits after the decimal place).

OPERATIONS
   Computations:
       The operators are all single-character:

       +      begins an	addition

       -      begins a subtraction

       ~      negates the result

       *      begins a multiplication

       /      begins a division

       %      begins an	interest computation (uses interval): rate=number.

       $      begins a sales-tax computation: rate=number.

       (      opening  parenthesis.   This  may	 enclose  a  unary  '-',  more
	      parentheses, or data (implicit unary '+').

       )      closing parenthesis, expects another operator, not data.

       =      flushes  out  the	 current  number, forces re-computation	of the
	      running result.

       w      increases	the width used for numbers  by	one  column  up	 to  a
	      platform-specific	value.

       W      decreases	 the  width  used for numbers by one column, down to a
	      minimum of 6.

       A space flushes out the current number-input, and (by default) sets the
       next  operator  to  be the same as the current one.  You	may repeat the
       last arithmetic operation of any	type:

       a      repeats the last '+' (default 0).

       s      repeats the last '-' (default 0).

       n      repeats the last '~'.

       m      repeats the last '*' (default 1).

       d      repeats the last '/' (default 1).

       i      repeats the last '%' (default 4).

       t      repeats the last '$' (default 4).

       You may toggle the prefix operator of any number	 by  typing  a	single
       character:

       A      toggles the operator to '+'.

       S      toggles the operator to '-'.

       N      toggles the operator to '~'.

       M      toggles the operator to '*'.

       D      toggles the operator to '/'.

       I      toggles the operator to '%'.

       T      toggles the operator to '$'.

   Editing:
       As you enter data, you may edit it.  A backspace	deletes	the last digit
       of the current number (if it is visible).  Use the arrow	 keys  or  vi-
       style  'h'  and	'l'  to	 move  left  and right within the line.	 Other
       editing commands	include

       u      undoes the last x/X command (restricted to restoring the current
	      data only).

       x      deletes  the  current  data.   If	 the data is null, deletes the
	      following	line.

       X      deletes the current data.	 If the	 data  is  null,  deletes  the
	      preceding	line and moves up.

       o      opens a new line after the current line.

       O      opens a new line before the current line.

       #      edit the associated comment.

       An  "open"  permits  you	 to  insert  a	new operator and data into the
       expression list.	 You may type an operator character (e.g.,  '+'),  and
       continue	 with  the  new	 data,	or an operator-repeat (e.g., 'A').  In
       either case, you	may edit the new data, just as you would the old data.
       A  'u'  (or other toggle, such as 'o', 'O', or 'q') typed after an open
       will undo the open (and close it).

   Scrolling/cursor movement:
       H      move to the top line on the screen.

       M      move to the middle line on the screen.

       L      move to the last line on the screen

       CTL/F  scroll forward one screen.

       CTL/B  scroll backward one screen.

       j      move forward one line.

       k      move backward one	line.

       z<CR>  move the current line to the top of the screen.

       z.     move the current line to the middle of the screen.

       z-     move the current line to the bottom of the screen.

       Like vi,	add allows you to jump to a particular line with a ":" command

       :$     jumps to the last	entry

       :1     jumps to the first entry.

   Scripts:
       Transcript files	are formatted to permit	line-oriented entries:
       <operator><value><blank><ignored><blank># comment

       The transcripts saved by	add contain the	running	 result	 in  the  "ig-
       nored"  part.  To exit without saving a transcript, type	'Q'.  A	normal
       exit, by	typing 'q', saves the list of operators, data (and running re-
       sult) in	the specified file.

       You can read and	write scripts without leaving add.

       :e file
	      clears the current script	and reads a script from	the file.

       :f     shows the	current	script name.

       :r file
	      reads a script at	the current entry

       :w file
	      writes a script to the specified file.

ENVIRONMENT
       Add runs	in a portable UNIX(R) environment.

FILES
       Add  is	a  single binary module, with a	help file add.hlp installed in
       the same	directory.

FUTURE WORK
       It would	be nice	to be able to change the precision within the program.
       In  particular,	the  interest and sales	tax computations would be more
       useful if their precision was independent of the	running	total.

AUTHOR
       Thomas E. Dickey

SEE ALSO
       wc (1), vi (1)

									ADD(1)

NAME | USAGE | SYNOPSIS | DESCRIPTION | OPTIONS | OPERATIONS | ENVIRONMENT | FILES | FUTURE WORK | AUTHOR | SEE ALSO

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