The development of mechanized mathematics goes through tortuous way in the western countries , written calculation is the most compute means . the mechanized degree of writing calculation is lower , and not meet the actual demands . other means , example : table calculation , slide rule , graphic solution , are invented to make up the defect of writing calculation 由于西方比较崇尚公理化数学，不易想到要从笔算在机械化方面存在的缺陷上寻求改进方向，以选择和设计算具算法；而是另外寻找别的计算方式、工具，如表算、计算尺和诺模图等来解决应用计算问题，走了弯路。
2.
Zhusuan is closer than writing calculation with computer in the distance , through the analyzing and researching in algorithm mechanism . the developed of mechanized mathematics , in ming dynasty , is the heights of chinese mathematics and the magnificent feats of the world in that times 四、从算法的基本机制要素(输入、储存、计算和输出)上，对明代机械化数学(珠算)与西方同期的机械化数学(笔算) ，进行了具体分析和比较，说明从与数字电子计算机思想方法的距离上看，珠算要比笔算近得多。
