I need to find an equation for a parabola or quartic equation that approximates my data points. (points do not fall on the exact parabola.)
for example my data is : {194, 267, 415, 553, 803, 923, 1139, 1159, 1357, 1537, 1457, 1591, 1681, 1591, 1457, 1537, 1357, 1159, 1139, 923, 803, 553, 415, 267, 194}