G01EA_A1W_F C++ Header Example Program Results Two tail significance levels and derivatives x p dp/dx 0.0000e+00 1.0000e+00 -7.9788e-01 1.0000e+00 3.1731e-01 -4.8394e-01 1.9600e+00 4.9996e-02 -1.1688e-01 3.0000e+00 2.6998e-03 -8.8637e-03