W02: 2/21 === ### [Python數學 (Python Math)](https://www.w3schools.com/python/python_math.asp) #### 內置數學函數 | Method | Description | Same as | | ----------- | ----------- | ----------- | | `max(1, 2)` | 最大值 | `2` | | `min(1, 2)` | 最小值 | `1` | | `abs(x)` | 絕對值 | `x` or `-x` | | `pow(x, y)` | x的y次方 | `x**y` | ### [Python數學模組 (Python math Module)](https://www.w3schools.com/python/module_math.asp) 使用Python數學模組前須先輸入"import math" 以下列出常用模組: | Method | Description | Same as | | ------------------- | ----------------- | -------------------- | | `math.factorial(x)` | x的階乘 | `x!` | | `math.sqrt(x)` | x的平方根 | `√(x)` or `x**(1/2)` | | `math.sin(x)` | x弧度的sin | `sin x` | | `math.cos(x)` | x弧度的cos | `cos x` | | `math.tan(x)` | x弧度的tan | `tan x` | | `math.radians(x)` | x°等值的弧度 | `x*π/180` | | `math.degrees(x)` | x等值的角度 | `(x*180/π)°` | | `math.trunc(x.y)` | (x.y)的整數部分 | `x` | | `math.fabs(x)` | x的絕對值 | `x` or `-x` | --- ### 輸入與輸出 > `print()`:輸入 > `input()`:輸出 --- ### 作業 作業放在[W03: 2/28](https://hackmd.io/V6xjFjVRQuy6ovryPYRjXw)
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