Integral of func computed with MIDPNT
Actual value of integral is  2.0000
     n              Approx. integral 
     1                 1.414214
     2                 1.653049
     3                 1.798624
     4                 1.883616
     5                 1.932792
     6                 1.961197
     7                 1.977596
     8                 1.987067
     9                 1.992539
    10                 1.995702