Python-类型错误 : can't convert complex to float

Question

我需要一些有关学校项目代码的帮助。

import math

v = 9.412
g = 9.81
y = -1.5

def radToDeg(x):
    return((x / math.pi) * 180)

def sqrt(x):
    return(x ** 0.5)

def CalculateAngle(x):
    return(radToDeg(math.atan(((v ** 2) + (sqrt((v ** 4) - (g * ((g * x ** 2) + (2 * y * v ** 2)))))) / (g * x))))

print(CalculateAngle(90.0297))

当我运行该程序时，我收到一个错误:

Traceback (most recent call last):
  File "C:/Users/Owner/Desktop/ballista.py", line 16, in <module>
    print(CalculateAngle(float(90.0297)))
  File "C:/Users/Owner/Desktop/ballista.py", line 14, in CalculateAngle
    return float(radToDeg(math.atan(((v ** 2) + (sqrt((v ** 4) - (g * ((g * x ** 2) + (2 * y * v ** 2)))))) / (g * x))))
TypeError: can't convert complex to float

有人可以帮我解决这个问题吗？谢谢!

Answer 1

引用这个ValueError: negative number cannot be raised to a fractional power

这可能会导致由于求幂优先于一元减号。