History of Hindu Mathematics: A Source Book v2.c17.s2.t1.33

v2.c17.s2.t1.33

"*Yâvat-tâvat* (so much as), *kâlaka* (black), *nîlaka* (blue), *pîta* (yellow), *lohita* (red) and other colours have been taken by the venerable professors as notations for the measures of the unknowns, for the purpose of calculating with them."³

"In those examples where occur two, three or more unknown quantities, colours such as *yâvat-