सिद्धान्तशिरोमणि: गणिताध्याय (भास्कराचार्य - ग्रहगणित, मध्यमाधिकार व स्पष्टाधिकार सटीक)

238
Fig. 38
plane of the meridian - where E₁ is the centre of
the sphere.
(4) The fourth latitudinal triangle is E₁ S₁ F₁ the
projection of ESF (Fig. 21) on the meridian plane
where E₁ F₁ is the Sama-Sanku or the Sanku of the
celestial body when it is on the prime vertical. E₁ S₁
is the Agrajyā as mentioned, S₁ F₁ is what is called
Taddṛti.
(5) The fifth latitudinal triangle is E₁ B₁ F₁ where
E₁ B₁ is Krāntijyā or H sin δ, E₁ F₁ is the Sama-
Sanku defined above and B₁ F₁ is what is called the
higher segment of the Taddṛti which is equal to
Taddṛti minus Kujyā or Kshitijyā.
(6) The sixth latitudinal triangle is E₁ D₁ B₁
where E₁ D₁ is called the first segment of Agrajyā, D₁ B₁ is
what is called un-mandala Sanku or H cos z of the
celestial body when it is on the unmandala or the
Equatorial horizon and E₁ B₁ Krāntijyā.