ht discrepancies.
     Managing these errors and how they propagate through calculations
     is the subject of an entire branch of mathematics and computer
     science and will not be discussed here, except for the
     following points:
     <P
></P
></P><UL
><LI
><P
>        If you require exact storage and calculations (such as for
        monetary amounts), use the <TT
CLASS="TYPE"
>numeric</TT
> type instead.
       </P
></LI
><LI
><P
>        If you want to do complicated calculations with these typ