E01ABF Example Program Results Central differences order 0 of Y0 = -1.00000 Y1 = -0.46000 Central differences order 1 of Y0 = 1.01000 Y1 = 1.92000 Central differences order 2 of Y0 = -0.04000 Y1 = 3.80000 Function value at interpolation point = -0.83591