Use the Series component (Logic/Sets/Series) instead of the Range component. To set a domain that is symmetric about zero set the S option (starting value) to a suitable negative number (say -50). Set an appropriate step size (say .5) with the N option. Set the count option C to [2*(S/N)+1]. In this case that would be 201.
On Mar 8, 12:01 pm, Chris <[email protected]> wrote: > I'm new to GH and am just trying to get used to how the components > work. As a start I've been using the Range, Function, Point and > Interpolate Curve objects along with some sliders to draw a simple > polynomial (ax^2+bx+c). I notice that I can't get the domain of the > function to cross through zero. It's either zero+ (0,1,2,3,...)or > zero- (0,-1,-2,-3,...) but not -zero+ (...-3,-2,-1,0,1,2,3,...). > Consequently the result does weird things near zero. Is it related > to the nature of the curve being used to draw the polynomial or am I > misunderstanding something about setting this up? Thanks for the > help. > > Chris
