Package bmp implements a BMP image decoder and encoder.

Dither is a library for dithering images in Go. It has many dithering algorithms built-in, and allows you to specify your own. Correctness is a top priority, as well as performance. It is designed to work well on its own, but also implements interfaces from the standard library, so that it can be integrated easily in a wide variety of situtations.

Package fastdiv implements fast division, modulus and divisibility checks for divisors known only at runtime based on paper: Faster Remainder by Direct Computation: Applications to Compilers and Software Libraries.

This package offers overflow-checked integer arithmetic operations for int,int32, and int64. Each of the operations returns a result,bool combination. This was prompted by the need to know when to flow into higher precision types from the math.big library.

Gonum is a set of packages designed to make writing numerical and scientific algorithms productive, performant, and scalable. It provides libraries for matrices and linear algebra; statistics, probability distributions, and sampling; tools for function differentiation,integration, and optimization; network creation and analysis

These packages provide more specialized math routines than are available in the standard Go math package. go-moremath currently focuses on statistical routines, with particular focus on high-quality implementations and APIs for non-parametric methods.

Dstream is a package for manipulating streams of typed, multivariate data in Go. A Dstream is a dataframe-like container that holds a rectangular array of data in which the columns are variables and the rows are cases or observations.

Dstream is designed to handle large datasets, where it is not possible to load all data for all variables into memory at once. To achieve this, Dstream utilizes a chunked, column-based storage format. A chunk contains the data for a contiguous block of rows. The data are stored by variable (column-wise) in typed Go slices. Only one chunk of the Dstream is held in memory at one time.

Package brahe defines core variable types and basic utility functions for astronomy programs using the AT-HYG (Augmented Tycho-HYG) catalog. The base file (brahe.go) defines the most widely used types in these utility functions. brahe uses the https://pkg.go.dev/gonum.org/v1/gonum/floats, Gonum floating point library for vector math.

This package provides a high-performance Uint128 type that supports standard arithmetic operations. Unlike math/big, operations on Uint128 values always produce new values instead of modifying a pointer receiver. A @codeUint128 value is therefore immutable, just like uint64 and friends.

This package provides generic utility functions for Go slices and maps.

This Go package converts dates between the Jalaali (Persian) and Gregorian calendar systems.

Package hyperloglog implements the HyperLogLog and HyperLogLog++ cardinality estimation algorithms. These algorithms are used for accurately estimating the cardinality of a multiset using constant memory. HyperLogLog++ has multiple improvements over HyperLogLog, with a much lower error rate for smaller cardinalities.

This package provides a moving average implementation for Go.

Package bigfft implements multiplication of big.Int using FFT (Schonhage-Strassen method for multiplying integers).

Package decimal implements an arbitrary precision fixed-point decimal. Features:

• the zero-value is 0, and is safe to use without initialization

• addition, subtraction, multiplication with no loss of precision

• division with specified precision

• database/sql serialization/deserialization

• JSON and XML serialization/deserialization

This package provides additional operations for the standard library's big.Float type, including natural logarithm, exponentiation, and power functions for arbitrary-precision floating-point numbers.

This package provides a Topological sort lib. Sorting and pruning of DAG graphs.

S2 is a library for spherical geometry that aims to have the same robustness,flexibility, and performance as the best planar geometry libraries.

This package implements a functionality for fitting statistical model. Additional Go packages include glm for Generalized Liner Models and duration for survival analysis. All models can be fit with maximum (or quasi-maximum) likelihood estimation, with optional L1 (Lasso) or L2 (ridge) penalization.

GoGraph is a lightweight, efficient, and easy-to-use graph data structure implementation written in Go. It provides a versatile framework for representing graphs and performing various operations on them, making it ideal for both educational purposes and practical applications.

This package provides a statistical library for Golang.

Package f is a Golang library implementing some basic algorithms.

This Go library represents physical units like length, area, speed, and temperature as typed floating point numbers. Methods to convert between metric and US customary units of measurement are provided on each type. Additional units can be created by multiplying by const values and variables can be converted by casting.

Package mathutil provides utilities supplementing the standard math and math/rand packages.