Enter N
  #       x(i)           w(i)
  1   7.071068e-01   1.570796e+00
  2  -7.071068e-01   1.570796e+00

Check value:   0.0000000e+00  should be:   0.0000000e+00

Check value:   3.1415925e+00  should be:   3.1415925e+00

Integral from gaujac:     3.371452
Actual value:             3.371500
Enter N
  #       x(i)           w(i)
  1   9.510565e-01   6.283184e-01
  2   5.877852e-01   6.283184e-01
  3   0.000000e+00   6.283184e-01
  4  -5.877852e-01   6.283184e-01
  5  -9.510565e-01   6.283184e-01

Check value:  -5.9604645e-08  should be:   0.0000000e+00

Check value:   3.1415920e+00  should be:   3.1415925e+00

Integral from gaujac:     3.371500
Actual value:             3.371500
Enter N