.LP
The following illustrate the use of the count-loop control glyph 
to construct counting
loop structures within \fBcantata\fP flow graphs.
.SH
Loop with NO Feedback
.LP
To construct a loop with NO feedback or to use the SAME input to the
loop each time, connect the loop output back to the loop input.
.LP
.DS L
.nf
\f(CW
              ------------    
     Input ---|=>      =>|----- Final output (optional)
  (optional)  |          |
            --|=>      =>|--*--- Sequence of glyphs to
           |  |count_loop|  |    be executed each time
           |  ------------  |    through the loop
           |                |
            ----------------
\fP
.fi
.DE
.SH
Loop with Feedback
.LP
To construct a loop that recycles a value produced within the loop to
be used as input the next time through the loop, connect the desired 
glyph output back to the `Loop Input'.
.IP
Note: Since all children of a loop
glyph are executed BEFORE the loop is re-executed, feedback may be
taken from any point within the loop sequence.
.LP
.DS L
.nf
\f(CW
              ------------    
     Input ---|=>      =>|----- Final output (optional)
  (optional)  |          |
            --|=>      =>|----- Sequence of glyphs to ---
           |  |count_loop|      be executed each time    |
           |  ------------      through the loop         |
           |                                             |
            ---------------------------------------------
\fP
.fi
.DE
