But why even use prototypes in the sub? 
$my_exp = myCurveX(\@my_arx,\@my_ary,\@my_arz,$my_v1,$my_v2);

sub myCurveX(){
 my ($arrayref1, $arrayref2,$arrayref3, $v1, $v2) = @_;

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You say "why even use prototypes" and then you use a prototype that says accept zero arguments, but the next line says to accept five arguments?

In reply to Re^2: Passing three arrays to a subroutine by jwkrahn
in thread Passing three arrays to a subroutine by jaichaud

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