________________
Half of the sum of the face (4) and the dimension (12) (mukhāyāmasamāsārdha) becomes the middle result (madhyaphala) 8 yojanas. This drum - shaped conch (Fig. 7) has to be divided into two parts (khandas) at the middle as in Fig. 8.
d = 12
Hereon debt
added
9
m=4 -
ha m=4
8
>
b=8
8 yojanas
5/4 (=V)
6
-
4
>
Figure 7
Figure 6 : The figure taken and labelled (in yojanas) by Visuddhamati for a conch
4
Figure 8a
Figure 8b
The volume (ksetraphala) of the conch can be obtained by taking one out of these two parts into consideration. On dividing the drum-shaped conch (Fig. 7) into two parts at the middle,
2 the above said debt (FD
12 for each of the
too becomes half parts. [The face and the base of each of the parts are circular in shape.] विक्खंभवग्गदहगुणकरणी वट्टस्स परिरयो होदी।
(TLS, v. 96 first half, p. 88) Translation : The square - root (karni) of ten times the square (varga) of the diameter (viskambha) becomes the circumference (paridhi) of a circle.
The diameter of the face of one part (take Fig. 8a for consideration) is 4 yojanas and! e diameter of its base is 8 yojanas.
According the above rule, the square of the diameter (4 yojanas)
Arhat Vacana, 14(1), 2002
41
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