Secondly, the formulate of the most adoptable area method has been simplified as K=F2-C2, K has been used as an indicator for deciding both which runction should be improved and how to improve.

• 对最适合区域法因为选参数b和作双曲线图都较麻烦，按与田中法相同的原理，对公式进行了简化，提出了判据k系数，其值的大小用于选择改进对象，其符号用于表示改进方向，实际运用中则无需再人为选b，也无需作图。