Basic Information on imcalc

Task: imcalc
Purpose: MIRIAD Image Calculator and Programming Language
Categories: utility, map combination, map analysis

TEST PROGRAM - retention of this program within MIRIAD
depends on its utility to MIRIAD users.

IMCALC is an image calculator and analysis tool. It reads
commands and assignment statements from the user, and
executes them. Commands generally consist of one or more
arguments, each argument separated by a space. Spaces are
not permitted within an argument (except within a quoted
string). The arguments to a command are generally either
variable names, or expressions, or several expressions
separated by commas. Some arguments can be omitted. In
this case a default value will be used.

There are no on-line instructions for using this program.
See the separate paper documentation, or make your own
documentation by copying MIRIAD's LaTex file to your own
work area and printing it out.  At Illinois, this can be
done using the following commands:

     cp -p $MIR/src/spec/imcalc/imcalc.latex myfile.latex
     latex myfile.latex
     dvitps myfile.dvi > myfile.ps
     lpr myfile.ps

Once you have done this, type ``ls -lt myfile.*'' to see
all the files that you've just created.  Remove any of
them that you don't want to keep.

LIMITATIONS:

The parser cannot handle functions with zero arguments.

The convolve function does not work for complex data.

The fft function does not work for real data.