"In case of multiples from the units place, the value of each place (sthana) is ten times the value of the preceding p…"

"In subtraction, the less is to be taken from the greater, positive from positive; negative from negative. When the gr…"

"The product of a negative quantity and a positive is negative; of two negatives, is positive; of two positives, is po…"

"Positive, divided by positive, or negative by negative, is positive. Zero, divided by zero, is zero. Positive, divide…"

"The square of negative or positive is positive; of zero, is zero. The root of a square is such as was that from which…"

"The grandest achievement of the Hindus and the one which, of all mathematical inventions, has contributed most to the…"

"‘…the transition [to the Hindu number system], far from being immediate, extended over long centuries. The struggle b…"

"It is India that gave us the ingenious method of expressing all numbers by ten symbols, each receiving a value of pos…"

"As my father was a public official away from our homeland in the Bugia customs house established for the Pisan mercha…"

"The importance of the creation of the zero mark can never be exaggerated. This giving to airy nothing, not merely a l…"