[TI-8X](http://en.wikipedia.org/wiki/TI-83_series) 是能根据函数绘图的可编程计算器。
chances are that you were that kid in class who dutifully programmed all of the necessary formulæ into your TI-8X calculator.
->
不过你可能就是班里的那种学生，会老老实实把所有公式都输进图形计算器里去看结果。

这样会不会更达意？