Numerical Analysis with Matlab.

Can you fit the data in the file given as data.dat using Matlab?

Data.dat file content (x,y)

+4.60000E-01 +2.39944E-08 +5.00000E-01 +5.47030E-08 +9.70000E-01 +1.15987E-03 +1.21200E+00 +1.90309E-01 +1.24300E+00 +4.21568E-01

(a) Linear least squares polynomial, (b) Least squares polynomial of degree 2,

For the 1st degree, the result should be as follows.

.35 0.3 0.25 0.2 0.15 0.1 0.05 0 0.4 0e 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 1.3 .35 0.3 0.25 0.2 0.15 0.1 0.05 0 0.4 0e 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 1.3