C:\>rpft hcl.dat ll:1 ul=100000 -xln nn=5 nd=0 Polynomial Coefficients -121.4214 -34.27512 10.335 -1.513737 0.1067046 -0.002897266 Enter E to quit or a trial X value: 5 For X=5 Y=-155.4404 Enter E to quit or a trial X value: 1e5 For X=100000 Y=-167.47783 Enter E to quit or a trial X value: e C:\>