Shulou(Shulou.com)06/03 Report--

Today, I will talk to you about how to understand the boundaries of Python extreme integers. Many people may not know much about it. In order to make you understand better, the editor has summarized the following for you. I hope you can get something according to this article.

When I first came into contact with Python, I used it as an intelligent calculator. Ordinary calculators report errors when calculating large numbers, such as calculating 9 to the power of 531441, and the calculator prompts me that it is not a number:

Then I tried the Python interpreter.

This figure has a total of 507124 digits, 500,000 digits, do not eat, drink or sleep, read one bit per second, and it takes more than five days to read. It is enough to show that the integers in Python have no boundary, but the higher the number, the longer the calculation time.

However, when programming, if you want to take the minimum value, you usually have to define a variable min, set the initial value to the maximum, and then assign the result to min when the result is smaller than the min. How do you define this initial value in Python?

For example, in Java, do we have Integer.MIN_VALUE and Integer.MAX_VALUE,Python have similar fixed values?

A: yes, although int in Python has no boundaries, if you only need a number larger than other numbers, you can use float ('inf'), in a similar way, smaller than all other numbers: float ('-inf'), which works for Python 2 and 3.

> float ('inf') > 10**100True > float ('-inf')

> >

However, Java's Long.MAX_VALUE is equivalent to Python3's sys.maxsize and Python2's sys.maxint,Java 's Long.MIN_VALUE is equivalent to Python3's-sys.maxsize-1 and Python2-sys.maxint-1.

> sys.maxsize9223372036854775807 >-sys.maxsize-1-9223372036854775808 > >

In Python, float ('inf') and float ('-inf') represent infinity and infinitesimal, which is the real extreme value. Isn't it a perfect mathematical expression? I think this is also a kind of Python beauty.

After reading the above, do you have any further understanding of how to understand the boundaries of Python extreme integers? If you want to know more knowledge or related content, please follow the industry information channel, thank you for your support.

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