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.
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.