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# speedcrunch
> 一个高精度的科学计算器。
> 更多信息:<https://www.speedcrunch.org>。
- 启动 SpeedCrunch
`speedcrunch`
- 复制最近计算的结果:
`<Ctrl> + R`
- 打开公式书:
`<Ctrl> + 1`
- 清除计算器的最近计算:
`<Ctrl> + N`
- 用括号包裹高亮部分(如果没有选择,则默认包裹所有):
`<Ctrl> + P`
- 加载 SpeedCrunch 会话:
`<Ctrl> + L`
- 保存 SpeedCrunch 会话:
`<Ctrl> + S`
- 切换数字键盘:
`<Ctrl> + K`