x

S(x)

u(x)

Absolute Error

0.0

1.000000000000

1.000000000000

0.000000000

0.2

0.977122202945

0.977122206528

3.58300E−09

0.4

0.895094784979

0.895094818584

3.36050E−08

0.6

0.728847097431

0.728847520156

4.22725E−07

0.8

0.44510798551

0.445108185698

1.71470E−07

1.0

0.00000000000

0.000000000000

0.000000000