Integers in python are supposed to be unlimited but I'm getting OverflowError: (34, 'Result too large')

Question

我遇到了溢出问题，但我不确定为什么，因为整数在 pytho 中应该是无限的。问题发生在最后一行。溢出错误：（34，'Result too large'）。

temperature_planet = 200
temperature_atmosphere = 250

epsilon = 0.25
dt = 60*10
heat_capacity = 1E5
insolation = 1370
sigma = 5.67E-8
planet_radius = 6.4E6
while True:
        temperature_planet += dt*(circle*insolation + sphere* epsilon*sigma* temperature_atmosphere**4 - sphere*sigma*temperature_planet**4)/heat_capacity

如果我尝试用 decimal.Decimal 初始化 temperature_planet，我得到：
类型错误：* 不支持的操作数类型：'float' 和 'decimal.Decimal'

Answer 1

这是因为您使用 python2 而不是 python3 进行编译。

检查另一个问题：Maximum and Minimum values for ints

Answer 2

您正在使用各种浮点数...epsilon、heat_capacity、sigma 和 planet_radius...

你的表情，

dt*(circle*insolation + sphere* epsilon*sigma* temperature_atmosphere**4 - sphere*sigma*temperature_planet**4)/heat_capacity

永远是一个浮点数。为什么您会有其他期望？

Integers in python are supposed to be unlimited but I'm getting OverflowError: (34, 'Result too large')

Integers in python are supposed to be unlimited but I'm getting OverflowError: (34, 'Result too large')

python

integer

overflow