Table 2.

Comparison of $f^{\prime \prime }(0)$ when $A=1,M=K=\beta =Pr=R=Bi=0.0$ for some particular values of B.

B	Ref.51	Ref.52	Present results
0.01	$-0.9980$	$-0.9980$	$-0.9980$
0.1	$-0.9694$	$-0.9694$	$-0.9694$
0.2	$-0.9181$	$-0.9181$	$-0.9181$
0.5	$-0.6673$	$-0.6673$	$-0.6673$
2.0	2.0175	2.0175	2.0175
3.0	4.7293	4.7293	4.7293