Parameters

Parameters are defined with a statement like

             pname = value    or    pname := value

where pname is any parameter name. Parameters can then be used in element definitions. Value can also be an arithmetic expression involving other parameters. Throughout the element definitions, a parameter value can also be an arithmetic expression. Note that in dimad the relationships between parameters are lost, but during the machine definition phase they are treated correctly.

 Examples:


lslot=100 


lb=lslot/8 


lh = sqrt(lslot)

Note: the value of $\pi$ if needed must be defined as an input parameter (say as PI = $\pi$).

The value halfturn must be understood as either $\pi$ radians or as 180 degrees depending on the units chosen.