科学计算器打角度方法:
1、首先在手机上打开手机科学计算器软件,如下图所示,必须看到出现cos等余弦函数的按钮才算科学计算器。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/1c950a7b02087bf49bdee094e2d3572c11dfcf99?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
2、然后点击那个cos按钮,可以看到自动在cos后面加了一个括弧,如下图所示。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/a2cc7cd98d1001e9d00ea372a80e7bec54e79799?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
3、如果这个时候直接在cos后面输入30,点击等号=,会看到出来一个错误的结果。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/9358d109b3de9c82c4484ef27c81800a19d84399?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
4、实际上直接在cos后面输入30,计算器是把30当做弧度来计算而不是当做角度,所以,我们只能把30度变成弧度放入cos括弧里面去计算才是对的,如下。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/34fae6cd7b899e515ca38d6952a7d933c8950d99?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
5、30/180*pi就是把30°变成了对应的以弧度为单位的数,然后点击=,即可得到正确结果如下。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/622762d0f703918f3cfc8ab7413d269759eec49a?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)