anchor.diff:                 WP1 = -0.005633072474649519
               else if (term.eq."y2") then
                  WP1 = 0.0044038530074910435
  -C             else if (term.eq."y3") then
  -C                WP1 = -7.126454225762893e-20
  -C             else if (term.eq."y4") then
  -C                WP1 = 2.3946974273275598e-36
  +            else if (term.eq."y3") then
  +               WP1 = -7.126454225762893e-20
  +            else if (term.eq."y4") then
  +               WP1 = 2.3946974273275598e-36
               else
                  WP1 = 0.
               end if
  
positive.code:                WP1 = 0.00298227900889512
              else if (term.eq."y2") then
                 WP1 = 0.002815253422852913
  C             else if (term.eq."y3") then
  C                WP1 = 8.439579246990046e-20
  C             else if (term.eq."y4") then
  C                WP1 = -2.3946974273275598e-36
              else
                 WP1 = 0.
              end if
  
negative.code:                WP1 = -0.0003766815038380074
              else if (term.eq."y2") then
                 WP1 = 0.00340250547302469
              else if (term.eq."y3") then
                 WP1 = -4.747215506787354e-20
              else if (term.eq."y4") then
                 WP1 = 2.4413135656776747e-36
              else
                 WP1 = 0.
              end if
  