许多物理实验，若用传统的实验数据处理方法则存在着计算量大、作图误差大、公式变换复杂、所得结果不直观简洁等诸多问题。
The data processing of physics experiment with traditional method has some problems, such as generous calculation, diagraph error, complex formula-transform, indirect and complicated result.
由于实验数据计算复杂并需要根据其结果在直角坐标纸上作图，不可避免引起主观误差。
The error was caused inevitably in the course of experimental data processing because of complicated calculation and drawing in the squared paper based on the results.
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