TestLagrange.java running
X[0]=-1.0,  Y=0.0
X[1]=-0.7,  Y=0.2
X[2]=-0.5,  Y=0.5
X[3]=-0.2,  Y=0.7
X[4]=-0.0,  Y=1.0
X[5]=0.3,  Y=0.8
X[6]=0.5,  Y=0.5
X[7]=0.8,  Y=0.3
X[8]=1.0,  Y=0.1
Y[0]=0.0, fit=2.5635049638594865E-13, err=-2.5635049638594865E-13
Y[1]=0.2, fit=0.20000000000005258, err=-5.256906021600116E-14
Y[2]=0.5, fit=0.5000000000000127, err=-1.2656542480726785E-14
Y[3]=0.7, fit=0.7000000000000006, err=-6.661338147750939E-16
Y[4]=1.0, fit=1.0, err=0.0
Y[5]=0.8, fit=0.7999999999999998, err=2.220446049250313E-16
Y[6]=0.5, fit=0.5, err=0.0
Y[7]=0.3, fit=0.2999999999999976, err=2.3869795029440866E-15
Y[8]=0.1, fit=0.09999999999998666, err=1.3350431871117507E-14
 
integral=0.8792273870612335
end TestLagrange.java