This is METAFONT, WAITS Version -65.0 (INIMF)  24 MAY 1984 02:04
**\delimiters ();

*path p; p=(0,0)..(1,1);

*show postcontrol length(p) of p;
! This path has no postcontrol 1.
<*> show postcontrol length(p) of p;
                                    
? h
A non-cyclic path can be referenced only by time values
between 0 and its length. I'll use (0,0) as the answer.

? 
>> (0,0)
! OK.
<*> show postcontrol length(p) of p;
                                    
? 

*show precontrol .0001 of p;
>> (0.00006,0.00006)
! OK.
<*> show precontrol .0001 of p;
                               
? 

*show point .0001 of p;
>> (0.00009,0.00009)
! OK.
<*> show point .0001 of p;
                          
? 

*show postcontrol .0001 of p;
>> (0.33339,0.33339)
! OK.
<*> show postcontrol .0001 of p;
                                
? 

*designsize:=.9;end
(illegal design size has been changed to 128pt)
Output written on MFPUT.GF[MF,DEK] (0 characters, 84 bytes).