Odd output from plot2d



Dear All,

I issued the command

plot2d(carg(eb(0.3,x,-0.025/Gamma,%pi/4.)),[x,0.,0.08],[gnuplot_term,table],[gnuplot_out_file,"ebplot2.dat"]) ;

(where eb() is a user-defined function), and got back the question

Is  1935330952107 x  - 220645654645148032  positive, negative, or
zero?

I can answer the question, and once I've done so, Maxima happily
produces my plot.  But I was kind of hoping that carg() would work out
this sort of thing for me.  Any ideas, please?

-- 

Thanks,

Dan Hatton