Python four numerical types (int, long, float, complex)

Python supports four different numerical types, including int (integer) long (long integer) float (actual floating point value) complex (plural number). This article introduces the four numerical types of python to coders. Friends who need it can just for reference.

Numeric data type stores numerical values. They are immutable data types, which means that changing the numeric data type results in a value in a newly allocated object.

Number objects are created when you assign a value to them. For example:

var1 = 1
var2 = 10

You can also delete a reference to a numeric object using the del statement.

The syntax of the del statement is:

del var1[,var2[,var3[....,varN]]]]

You can use the del statement to delete a single object or multiple objects.

For example:

del var
del var_a, var_b

##Python supports four different numeric types:

•int (signed integer): is often referred to as an integer or integer, a positive or negative integer without a decimal point.

•long (long integer): or desire, an integer of infinite size, written like this integer and an uppercase or lowercase L.

•float (floating point actual value): Floats, representing real numbers, decimals written by dividing the integer part and the decimal part. The float may also be expressed in scientific notation with E or e (2.5e2 = 2.5 × 102 = 250).

•complex (plural): + The form of BJ, where a, b are floats and J (or J) represents the square root of -1 (which is an imaginary number). a is the real numerical part and b is the imaginary part. Complex numbers are not programmed using Python.

Here are some examples of numbers:

##int 10100-786080##-0490535633629843L-90.-.6545+0J-0x260-052318172735L-32.54e1003e+26J0x69-4721885298529L70.2-E124.53e-7j•Python allows you to use lowercase versions of the long L, but it is recommended that you only use an uppercase L to avoid confusion with the number 1. python long integer displays a capital letter L.

long	float	complex
51924361L	0.0	3.14j
-0x19323L	15.20	45.j
0122L	-21.9	9.322e-36j
0xDEFABCECBDAECBFBAEl	32.3+e18	.876j

• A complex number consisting of an ordered pair of a true floating point number + BJ, where a is the real part and b is the imaginary part representation of the complex number.

Number type conversion:

Python's number conversion internally contains a common evaluation type of mixed expressions. But sometimes, you need to explicitly coerce a number from one type to another as an operator or function argument to satisfy requirements.

•int type (X) converts X to an ordinary integer.

•long(X) Converts X to a long integer.

•float type (X) converts X to a floating point number.

•complex(x) Converts x with a real part of x and an imaginary part of zero to a complex quantity. Type complex(x,y) converts the x and imaginary parts of x and y to complex numbers. x and y are numerical expressions with built-in number functions:

The above article briefly discusses the four numerical types of Python (int, long, float, complex). This is all the content that the editor has shared with you. I hope it can help It is a reference for everyone, and I hope everyone will support the PHP Chinese website.

For more articles related to python’s four numerical types (int, long, float, complex), please pay attention to the PHP Chinese website!