Table 7. Effect of the value of the parameter PRECISION on the size of a two-dimensional function table representing the hydraulic characteristics of Lock and Dam 21 on the upper Mississippi River near Quincy, Illinois, computed in the Full EQuations UTiLities model
[RMS, root mean square]
| Precision
| Number of
upstream
heads
| Number of
partial
free drops
| Reported
RMS error
|
| 0.005
| 21
| 19
| 0.005
|
| .020
| 13
| 11
| .016
|
| .050
| 10
| 9
| .032
|