Python 除法产生的答案比应有的大？

Question

我正在尝试在 Python 中制作一个计算器，它可以计算出光传播 X 英里所需的时间，但我遇到了一些除法问题。

当我输入“1”或任何较小的数字时，它会给我一个比应有的更大的数字。例如，我输入“5”，它告诉我 "It would take 2.684096876850903e-05 seconds for light to travel 5.0 miles."，即使它只需要 0.00002684096877 秒。奇怪的是计算器实际上可以处理大数。（例如，我输入 milesPerSecond，它给了我“1”，就像它应该的那样。）

我做错了什么吗？谢谢

variable = 1
while variable == 1:
    input1 = input("How many miles do you want light to travel? ");
    miles = float(input1);
    milesPerSecond = 186282.397;
    seconds = miles / milesPerSecond;
    if seconds < 60:
        print("It would take", seconds, "seconds for light to travel", miles, "miles.");
    elif seconds < 3600:
        print("It would take", seconds / 60, "minutes for light to travel", miles, "miles.");
    elif seconds < 86400:
        print("It would take", seconds / 3600, "hours for light to travel", miles, "miles.");
    elif seconds > 86400:
        print("It would take", seconds / 86400, "days for light to trabel", miles, "miles.");
    print("");

Answer 1

你给出的两个答案是一样的，一个是科学计数法，一个是标准计数法。

例如：

0.00000000851  ==  8.51e-9

Python 除法产生的答案比应有的大？

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