Two numbers could now be multiplied by measuring the distance from the beginning of the scale to one factor with a pair of dividers, then moving them to start at the other factor and reading the number at the combined distance.

• 将两个数字相乘时，先用分规量出刻度起点到其中一个数的距离，再将分规放在另一个数上，读出两数相加的总长度。