看來只要 import Foundation，就可以使用「📗 參考」中提及的數學函數。
atan2(y, x)
AlphaCodingSkills ⟩ Swift Math Module ⭐️
ICTdemy ⟩ Lesson 11 - Mathematical functions in Swift
Swift ⟩ Numbers and Basic Values ⟩
Global Numeric Functions - min(), max(), abs().
Exponentiation operator in Swift
Mathematical functions in Swift
Last updated 9 months ago
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