History of Hindu Mathematics: A Source Book v2.c17.s21.5

v2.c17.s21.5

“The residue of the sun on Thursday is lessened and then multiplied by 5, or by 10. Making this (result) an exact square, within a year, a person becomes a mathematician.”²

“The residue of any optional revolution lessened by 92 and then multiplied by 83 becomes together with unity a square. A person solving this within a year is a mathematician.”³