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

: Does it look like ऋ? No, it has a horizontal top bar, a round left belly with a notch, connected to a vertical stem on the right: THAT IS 'ध'! Wait, why does it have 'ध'? Could it be ऋणयोर्धनयोर्घातो धनं ऋणयोर्वधो...? Wait, let's re-read the first half: Does it say ऋणयोर्धनयोर्घातो धनं? Wait! Look at the space in: ऋणयोर्धनयोर्घातोIs there a space afterघातो? Yes! Then what is the next letter? ध! Then न! Wait, has it got an anusvara? Look at the top of न: Wait, does it have an anusvara? NO! There is no anusvara on that न! It's just धन! Wait, then मृ? Wait, look at: ऋणयोर्धनयोर्घातो धनमृणयोर्वधोWait, why would it sayधनमृणयोर्वधो धनं भवति`? That would mean product of positive and negative is positive! Wait, could it be: "ऋणयोर्धनयोर्घातो धनं, ऋणयोर्वधो धनं भवति"? Wait! If: "The product of two negatives is positive; positive multiplied