(Engine-Level Function)
| Description: | Returns the maximum of a group of parameters. | 
| Returns: | Numeric | 
| Usage:  | Script or steady state. | 
| Function Groups: | Generic Math | 
| Related to: | Abs | AMax | AMin | Limit | Min | 
| Format:  | Max(Parm1, Parm2 [, Parm3, ...]) | 
| Parameters: | 
| Parm1, Parm2, Parm3, ... | 
| Required. Any number of parameters giving any numeric expressions, from which a maximum value will be selected. | 
| Comments: | The order of the values is irrelevant. If any of the parameters is invalid, the return value is invalid also. | 
Examples:
p = Max(2, 3, 2.9, -3); q = Max(3, 2); r = Max(Invalid, 6);
The values of p, q, and r will be 3, 3 and Invalid respectively.
