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FX-502P是一种程序型计算器,进口价格约为人民币300元.它轻便,可随身携带;断电后能保留程序存贮;亦可利用程序输送器将程序装入录音磁带或从磁带调回计算器中.最近,我们编制了一个适用于该计算器的尼格里岩石化学计算程序.我们以这个程序利用FX-502P验算了《尼格里岩石化学计算的电算程序》一文(刊载于《地质与勘探》1981年第六期28～30页)提供的全部数据.平均每个样品的参数计算只用了三、五分钟.这样就免去了使用国产108机必须的纸带穿孔、检查、校正,程序上机编译,数据光电输入等等全部过程.节省了使用电算机的费用,更重
FX-502P is a program calculator, the import price of about 300 yuan. It is lightweight, portable; can retain the power after the program storage; can also use the program conveyor into the recording tape or tape Back to the calculator.We recently compiled a Nigeri petrochemical calculation procedure for this calculator.We used this procedure to validate the article “Calculations of the chemistry of the Nigelian rock” using the FX-502P Published in “Geology and Exploration” 1981 the sixth period 28 ~ 30) to provide all the data.An average of each sample parameter calculation took only three or five minutes.This eliminates the need to use domestic 108 machine paper tape Perforation, inspection, calibration, program on-machine compilation, data optical input and so the whole process. Save the use of computer costs, heavier