作業#5.3 公式計算，比方寫梯形面積的 function

我還是經常記不起Float和Double的區別。所以我寫了兩個func 去提醒自己。

import UIKit
func calculateTrapezoidArea (top: Float, bottom: Float, height: Float) -> Float {
let result = (top + bottom) * height / 2
print("This \(result) is actually inaccurate.")
return result
}
func calculateTrapezoidAreaInDouble (top: Double, bottom: Double, height: Double) -> Double {
let result = (top + bottom) * height / 2
print("Now this \(result) is the real answer.")
return result
}
calculateTrapezoidArea(top: 22222222.2, bottom: 55555555.5, height: 44444444.4)
calculateTrapezoidAreaInDouble(top: 22222222.2, bottom: 55555555.5, height: 44444444.4)