The mathematical constants provided by the Python standard library Mathmath
Pi
Mathematical constant Pi, the variable space belongs to the standard library math
E
The mathematical constant e,e is the
ACdream 1061 (abs usage)
Mainly abs usage, reading question data
Maximum Value of long: 9223372036854775807The minimum value of long:-9223372036854775808.Maximum Value of unsigned long: 18446744073709551615
From the example of the question, we can
If you want to write a cmath class, there is a method ABS (), the prototype is as follows:
Class cmath{Public:Int ABS (int );};
The general programming habit is to directly write code and then debug it. As for testing, let's talk about it later. TDD
Python functions and modules, Python function modulesIntroduction
Function concepts also exist in python. Standard functions can be called built-in functions, which can be called directly by function names. However, some other built-in functions
IntroductionIn Python there is also the concept of functions, the standard function we can call built-in functions, such functions can be directly called through the function name. But there are other functions that are not built-in that cannot be
learning notes | chapter 01st | basic knowledge, python chapter 01st
This learning note is mainly used to record some Key points in the course of learning , or the content that you do not understand may be a bit messy, but it is more practical, it
Python supports four different numeric types:
Integer (Int) -usually referred to as an integer or integral, is a positive or negative integer, with no decimal points.
long integers -an integer with an infinite size, and an integer that
5.1 Number typesThe numbers provide scalar storage and direct access. It is a non-changeable type, meaning that the value of the change number generates a new object. Of course, this process is transparent to both the programmer and the user, and
Python is very convenient to process strings. It takes some time to make a summary:
------ Function -------------------- meaning --------------------
ABS (number) returns the absolute value of a number.
Cmath. SQRT (number) returns the square root,
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.