One final thing, both simple and scientific calculators often contain a percent button.

最后一件事，简单计算器和科学计算器往往都包含一个百分比的按钮。

Many smartphone calculators can become high powered scientific calculators when tipped on their side.

许多智能手机计算器可以在倾斜放置时成为高性能的科学计算器。