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Re: arguments/realtime3d

my function generates a starting set for a simulation, therefore the null
I wasn't sure about the Length[x], will this be safe (under Mathematica 3,
too)  even if f [] is called without an argument and x is defined elsewhere?

> Why would one create a function with only optional arguments in the first
> place?  Do you intend a Null argument to be valid input as well?

Thanks for your answer


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