What libraries are used for floating point number operations in Go?

Detailed explanation of Go language floating point number operation library

The built-in floating-point number operation of Go language is sufficient in many cases, but for high-precision calculations, a third-party library is required. This article will introduce the commonly used floating-point number arithmetic library in Go language and focus on how to avoid accuracy losses.

The accuracy problem of floating point number calculation in Go language

Go uses the IEEE 754 standard to represent floating point numbers, which can lead to accuracy loss in some operations. For example, simple addition, subtraction, multiplication and division may differ slightly from the expected value.

Recommended library: github.com/shopspring/decimal

github.com/shopspring/decimal library is a powerful decimal operation library that can effectively avoid the problem of loss of precision in floating-point operation. This library uses decimal notation to ensure the accuracy of the calculation results.

Other optional libraries

In addition to github.com/shopspring/decimal , there are some other libraries that can be used for floating point operations, but their functionality and applicable scenarios may vary. Choosing the right library depends on the specific application requirements.

Summarize

In Go, choosing the right floating-point number arithmetic library is crucial. For applications that require high-precision calculations, it is highly recommended to use the github.com/shopspring/decimal library to ensure the accuracy of the calculation results. For general floating-point operation, operators built in Go are usually sufficient.

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