( ( Start ( with ( ( a ( large ( error ( tolerance ( and ( decrease epsilon ) ) ) ) ) ) ( over ( ( several to ) many ) ) ) ) ) ( iterations . ) )
(ROOT (S (NP (NP (NNP Start)) (PP (IN with) (NP (NP (DT a) (JJ large) (NN error) (NN tolerance) (CC and) (NN decrease) (NN epsilon)) (PP (IN over) (NP (QP (JJ several) (TO to) (JJ many))))))) (VP (VBZ iterations)) (. .)))
Start with a large error tolerance and decrease epsilon over several to many iterations.
(ROOT (S (NP (PRP You)) (ADVP (NP (NP (NN decrease) (NNS errors)) (PP (IN in) (NP (DT an) (NN experiment)))) (IN by)) (VP (VBP take) (NP (JJ many) (NNS measurements))) (. .)))