NAME

       stilts-calc - Evaluates expressions

SYNOPSIS

       stilts calc [expression=<expr>] [table=<table>]

DESCRIPTION

       calc  is  a  very  simple utility for evaluating expressions. It uses the same expression evaluator as is
       used in tpipe and the other generic table tasks for things like creating new columns, so it can  be  used
       as  a  quick  test  to  see  what expressions work, or in order to evaluate expressions using the various
       algebraic functions documented in SUN/256. Since usually no table is involved, you can't refer to  column
       names  in  the  expressions.  It  has one mandatory parameter, the expression to evaluate, and writes the
       result to the screen.

OPTIONS

       expression=<expr>
              An expression to evaluate. The functions in SUN/256 can be used.

       table=<table>
              A table which provides the context  within  which  expression  is  evaluated.  This  parameter  is
              optional,  and  will  usually  not  be  required;  its  only  purpose  is to allow use of constant
              expressions  (table  parameters)  associated  with  the  table.  These  can  be  referenced  using
              identifiers of the form param$*, ucd$* or utype$* - see SUN/256 for more detail.

SEE ALSO

       stilts(1)

       If the package stilts-doc is installed, the full documentation SUN/256 is available in HTML format:
       file:///usr/share/doc/stilts-doc/sun256/index.html

VERSION

       STILTS version 3.2-debian

       This  is the Debian version of Stilts, which lack the support of some file formats and network protocols.
       For differences see
       file:///usr/share/doc/stilts/README.Debian

AUTHOR

       Mark Taylor (Bristol University)

                                                    Mar 2017                                      STILTS-CALC(1)