for later

http://www.wolframalpha.com/input/?i=Fit[+{+%280.1%2C+-0.62049958%29%2C+%28-0.28398668%29%2C+%280.3%2C+0.00660095%29%2C+%280.4%2C+0.24842440%29%2C+%280.5%2C+0.18380945%29+}%2C+{1%2C+x%2C+x^2%2C+x^3%2C+x^4}%2C+x]