ब्राह्मस्फुटसिद्धान्त (ब्रह्मगुप्त - शून्य, कुट्टक, बीजगणित एवं सम्पूर्ण २१ अध्याय सान्वय सटीक)

विषुवच्छायां for (विषुवत्च्छायां) २. गुलांतरं for (ङ्गुलांतरं)`
Wait, where is 3? Maybe omitted in print, but superscript 3 is in text above कर्णोद्धृतं!

Let's carefully verify the apparatus text:

Under divider line:
५८. (घ) १. विषुवच्छाया (ग) (च) for (विषुवत्च्छाया)
Wait, let's look at the parenthesis in line :
(विषुवच्छाया) or (विषुवत्च्छाया)?
Ah, let's look closely at (विषुवच्छाया) in line :
Does it have 'त्'?
Wait, in line :
५८. (घ) १. विषुवच्छाया (ग) (च) for (विषुवच्छाया)
Wait, if both are विषुवच्छाया, why?
Look at the first: विषुवच्छाया.
Look at the second: (विषुवच्छाया) or (विषुवत्च्छाया)?
Look at the character before 'च्छा':
In the second, there is a loop/stroke! It's विषुवत्च्छाया!
Wait, what about the main text line 3?
विषुवत्च्छायाज्जादिषु!
So the text has `विषुवत्