कामिक आगम: पूर्व भाग (अष्टाविंशति मूल शैव आगमों का प्रथम एवं सर्वोच्च आगम महाकोश)

Holding the naks”atra obtained for the perimeter, the well-versed architect
should divide it by 8. The remainder denotes vyaya. It is told that vayaya
could be determined even in a different way.
सकलं त्रिगुणीकृत्य मानसूत्रैर्भजेद् व्ययम्।
आयाधिक्यं तु शुभदं समं हीनं च विवर्जयेत् ।। १३
sakalam trigun.ikr’tya ma’nasu’trair bhajed vyayam
a’ya’dhikyam tu s’ubhadam samam hi’nam ca vivarjayet 13
Having multiplied the perimeter by 9, the architect should divide it by
the number of ma’na su’tras. The remainder denotes vyaya. On
considering the two factors a’ya and vyaya, if the value of a’ya (income) exceeds
the value of vyaya(expenditure), then the proposed perimeter becomes the
yielder of prosperity. If a’ya and vyaya are equal or if a’ya is lower than
vyaya, then the proposed perimeter is to be abandoned.
Ma’nasu’tra means the east-west line or the north-south line of the
va’stu man.d’ala. There are 10 ma’nasu’tras in paramasa’yika man.d’ala.
So, after multiplying the perimeter by 9, it should be divided by 10.
In the case of a’sana man.d’ala, it should be divided by 11, since there
are 11 ma’nasu’tras in this man.d’ala.
विस्तारायाम राशिं तु वसुभिर्गणयेद् बुधः।
त्रिंशद्भिर्विभजेच्छिष्टं तिथिनागावटेस्तु वा ।। १४
vista’ra’ya’ma ra’s’im tu vasubhir gan.ayed budhah
tris’adbhir bajecchis”t’am tithina’gavat’aistu va’ 14
The well-versed architect should multiply the perimeter, which is twice
the length and breadth, by 8 and divide it by 30. The remainder obtained
denotes the factor known as tithi (lunar day). Or, tithi may be determined
by multiplying the perimeter by 8 and dividing it by 15.