| 1 | Here we did it basically by hand by computing the integral. | |
| 2 | He can do easy sums in his head but has to write out hard ones. | |
| 3 | The fatigue accumulative effect for reading workload was stronger than that of written calculations. | |
| 4 | The contents and editions of Bi Suan Shu Xue are discussed, and compared with Shu Xue Qi Meng. | |
| 5 | Problem-solving approach: linked list, index polynomial coefficients identification, addition, subtraction and other arithmetic were simulated written calculation process. |