alphanumeric system

基本解释

The University of Ottawa's official grading system is alphanumeric, and it must be applied to all courses.
渥太华大学的的官方评分系统是一个包含数字与文字评分的系统，它应用于渥太华大学的所有专业课程。
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Alphanumeric:Contraction of 'alphabet and numeric' that refers to any system combining letters and numbers.
上标字符：放在内文字词上角，较内文字为细的字母或数字。参阅下标字符。
Now the system can achieve a recognition ratio of 94. 61%. The experimental result shows that the BP neural network can be used for handwritten alphanumeric character recognition successfully.
目前识别率为94.61%，实验结果表明，BP神经网络可成功地用于手写数字字符的识别问题。