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Message-ID: <88431FCDD055A44BA5EEE1EC14E7E151143E05@lu-mail-san.dfu.local> Date: 2010-01-06T12:03:14Z From: Kasper Kristensen Subject: solving cubic/quartic equations non-iteratively Try, library(polynom) p <- polynomial(c(-8,14,-7,1)) solve(p) Kasper