手机带的计算器不支持输入角度数默认的是弧度制,30°是角度制,进行角度与弧度转化即可:
以30°为例,180°=1π ,则1°=(1/180)π ,那么30°=(1/6)π。 用π/6代替你的30进行计算即可,也就是计算sin(π/6)。
方法/步骤
我们找到小米手机自带的计算器软件,如下图所示,然后点击进入:
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/4d086e061d950a7b0609693f01d162d9f2d3c908?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
进入小米手机自带的计算器以后的界面如下:
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/8644ebf81a4c510fe91dc5e16b59252dd52aa56b?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
然后我们点击切换按钮,切换到可以计算三角函数的界面如下图:
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/d52a2834349b033b6305db211ece36d3d439bdbf?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
要是平常的物理计算器,我们可以直接输入sin(30)或者cos(60),我们同样的这样输入,出现的结果如下图,不是正确的答案:
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/5fdf8db1cb1349548b52ce9f5d4e9258d0094af8?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
在这里我们要这样输入,sin(30/180*pai)或者cos(60/180*pai),结果图如下所示:
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/cdbf6c81800a19d83103a5fe38fa828ba71e46cc?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
同理tan值得计算输入如下tan(45/180*pai),结果图如下图所示: