How to implement plural conversion in Go language

With the continuous development and widespread application of Go language, it has become the language of choice for many developers. Among them, the Go language has excellent support for mathematical calculation and processing, and can complete various mathematical operations easily and efficiently. In mathematical calculations, complex numbers are a very important mathematical concept and are widely used in physics, engineering, computer graphics and other fields. This article will focus on how to implement plural conversion in the Go language.

What are plural numbers?

First of all, let’s briefly introduce what plural numbers are. Complex numbers are a mathematical concept expanded on the basis of real numbers. Its definition is as follows:

$$a bi$$

where a and b are both real numbers, and i is an imaginary unit. Conforms to the following definition:

$$i^2 = -1$$

In the above complex numbers, a is called the real part, b is called the imaginary part, the real part and the imaginary part of the complex number Can be positive, zero or negative.

Plural numbers in Golang

In the Golang language, the representation of complex numbers is as follows:

var c complex64 = 5 + 10i   // complex64类型，实部为5，虚部为10

Among them, complex64 represents a complex number containing two float32 type values, respectively Represents the real part and the imaginary part; and the complex128 type is a complex number containing two float64 type values.

You can use the built-in real() function and imag() function to obtain the real and imaginary parts of complex numbers:

// 获取复数的实部和虚部
var c complex64 = 5 + 10i
fmt.Println(real(c)) // 输出：5
fmt.Println(imag(c)) // 输出：10

In Go language, operations such as, -, *, / are supported operator performs basic operations on complex numbers. Among them, both the left and right sides of the operator should be of complex type.

Complex number conversion in Golang

In actual programming applications, you may need to convert complex numbers into other types of values. In Go language, complex numbers can be converted to integer, floating point and string types. How to perform these conversions is described below.

Convert complex numbers to integers

You can use functions such as int() or int64() to convert complex numbers to integer types. If you directly convert complex numbers to integer types, data will be lost and the Go language will report an error. Therefore, you need to first use the built-in function real() or imag() to obtain the real part or imaginary part, and then perform cast type conversion.

For example, convert a complex number to an int type:

var c complex64 = 5 + 10i
fmt.Println(int(real(c))) // 输出：5
fmt.Println(int(imag(c))) // 输出：10

Convert a complex number to a floating point number

You can use functions such as float32() or float64() to convert a complex number to a floating point number type. When using these functions, there is no need to obtain the real or imaginary part first.

For example, to convert a complex number to float32 type:

var c complex64 = 5 + 10i
fmt.Println(float32(c)) // 输出：(5+10i)

Convert a complex number to a string

You can use the fmt.Sprintf() function to convert a complex number to a string type.

For example, convert complex numbers to string type:

var c complex64 = 5 + 10i
s := fmt.Sprintf("%v", c)
fmt.Println(s) // 输出：(5+10i)

Summary

This article introduces the concept, representation method and basic operations of complex numbers in Go language, focusing on complex numbers Methods for converting to integer, floating point, or string types. Complex numbers are widely used in actual programming, and intermediate and advanced developers should master the application of complex numbers in the Go language.

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