surfaceFunction
This option creates a surface by defining two parameters and three functions.
Inline mode usage:
 surfaceFunction h
 Displays the help file that summarizes the parameters for this command.
 surfaceFunction –n <name> p <u_start> <u_end> <u_samples> <v_start> <v_end> <v_samples> <x=f($u,$v)> <y=f($u,$v)> <z=f($u,$v)>
 Create surface with three functions that define points in Cartesian.
Interactive mode usage:
 Invocation
 surfaceFunction
 Parameters

 Parameter “u” (start end samples) in order to define range of variable “u”.
 Parameter “v” (start end samples) in order to define range of variable “v”.
 x = f($u,$v) for X coordinate function
 y = f($u,$v) for Y coordinate function
 z = f($u,$v) for Z coordinate function
Remark: The parameters u and v of the functions are bound to the variables $u and $v.
Example:
>surfaceFunction
Parameter ‘$u’ (start end samples): 0 24 48
Parameter ‘$v’ (start end samples): 0 24 48
x = f($u,$v) = $u
y = f($u,$v) = $v
z = f($u,$v) = sin($u) + sin($v)
>