The command funct_plot must be used to plot functions (see 3.7).
Example : The following instructions will plot the function
for 
between 
and 
on the PS-file t.ps of the result
directory :
defxr_d xr 1 1001 fix_xr_d xr 0 .001 defunc_d F xr fill_func F sin(16*x) defframe f frame f -.1 .95 -1.1 1.1 .2 .2 defgraph_PS t t.ps portrait setframe t f defcolor red color red 1 0 0 setcolor t red funct_plot F t f 0 1 250 destroy t
The file t.ps is represented on figure 6.