Enter N
  #       x(i)           w(i)
  1   1.650680e+00   8.131284e-02
  2   5.246476e-01   8.049141e-01
  3  -5.246476e-01   8.049141e-01
  4  -1.650680e+00   8.131284e-02

Check value:   1.7724540e+00  should be:   1.7724539e+00

Integral from gauher:     1.380330
Actual value:             1.380388
Enter N
  #       x(i)           w(i)
  1   3.436159e+00   7.640433e-06
  2   2.532732e+00   1.343646e-03
  3   1.756684e+00   3.387440e-02
  4   1.036611e+00   2.401386e-01
  5   3.429013e-01   6.108626e-01
  6  -3.429013e-01   6.108626e-01
  7  -1.036611e+00   2.401386e-01
  8  -1.756684e+00   3.387440e-02
  9  -2.532732e+00   1.343646e-03
 10  -3.436159e+00   7.640433e-06

Check value:   1.7724538e+00  should be:   1.7724539e+00

Integral from gauher:     1.380388
Actual value:             1.380388
Enter N