Share 'Gh Tolerance?'

Is there a way to set the tolerance in Grasshopper?  Maybe it could take the tolerance from the Rhino Tolerance. I'm getting numbers like -2.0178e-12, should be able to set tolerance to like 0.0001 or 0.001, or whatever, or else it takes tolerance from Rhino model? Maybe it's already done somewhere & I just cannot find it.  Just a small issue really, but just thought I'd ask. Cheers! - Calvi…