编译原理上机编写的，自认为做得非常好，很有价值，可编程计算器，采用递归下降的算法制作而成的，考虑了几乎所有的问题，唯一的不足是没有实现那些高级的函数，只是带负数运算的简单的四则运算。-Compiler Construction Principles, prepared by the machine, since that has done a very good, great value, programmable calculators, the decline in the use of r