Nt
f ″ ( 0 )
− θ ′ ( 0 )
− ϕ ′ ( 0 )
0.1
1.2490
0.9261
0.8598
0.3
0.8108
0.7386
1.0
0.5222
0.5476
S l p
0
0.4393
0.3276