Math

Package math implements custom Cosmos SDK math types used for arithmetic operations. Signed and unsigned integer types utilize Golang's standard library big integers types, having a maximum bit length of 256 bits.

Package mathext provides functions that supplement the golang math library.

Package maths provides shared interfaces and functions across all packages in the maths module.

Package datemath provides an expression language for relative dates based on Elasticsearch's date math. This package is useful for letting end-users describe dates in a simple format similar to Grafana and Kibana and for persisting them as relative dates. The expression starts with an anchor date, which can either be "now", or an ISO8601 date string ending with ||. This anchor date can optionally be followed by one or more date math expressions, for example: The supported time units are: This package aims to be a superset of Elasticsearch's expressions. That is, any datemath expression that is valid for Elasticsearch should evaluate in the same way here. In addition to the expressions supported by Elasticsearch, this package also supports business days, annual quarters, and fiscal years/quarters.

Package go3d is a performance oriented vector and matrix math package for 2D and 3D graphics. Every type has its own sub-package and is named T. So vec3.T is the 3D vector type. For every vector and matrix type there is a String() method and a Parse() function. Besides methods of T there are also functions in the packages, like vec3.Dot(a, b). Packages under the float64 directory are using float64 values instead of float32. Matrices are organized as arrays of columns which is also the way OpenGL expects matrices. DirectX expects "arrays of rows" matrices, use the Transpose() to convert. Methods that don't return a specific value, return a pointer to the struct to allow method call chaining. Example: Method names in the past tense return a copy of the struct instead of a pointer to it. Example: Documentation: http://godoc.org/github.com/ungerik/go3d

float32 math package. This library provides float32 counterparts for Go's float64 math functions. E.g.: The implementation partially uses assembly code (see, e.g., sqrtf_amd64.s) for fast computation. However, when no assembly implementation exists yet a generic implementation is used which uses Go's float64 math functions underneath. Note: the assembly code is not goinstallable on all platforms. Therefore, goinstall will compile the portable implementation. If you manually execute "make install", you will get the faster implementation.

Package mathutil provides utilities supplementing the standard 'math' and 'math/rand' packages. 2020-12-20 v1.2.1 fixes MulOverflowInt64. 2020-12-19 Added {Add,Sub,Mul}OverflowInt{8,16,32,64} 2018-10-21 Added BinaryLog 2018-04-25: New functions for determining Max/Min of nullable values. Ex: 2017-10-14: New variadic functions for Max/Min. Ex: 2016-10-10: New functions QuadPolyDiscriminant and QuadPolyFactors. 2013-12-13: The following functions have been REMOVED 2013-05-13: The following functions are now DEPRECATED These functions will be REMOVED with Go release 1.1+1. 2013-01-21: The following functions have been REMOVED They are now replaced by untyped constants Additionally one more untyped constant was added This change breaks any existing code depending on the above removed functions. They should have not been published in the first place, that was unfortunate. Instead, defining such architecture and/or implementation specific integer limits and bit widths as untyped constants improves performance and allows for static dead code elimination if it depends on these values. Thanks to minux for pointing it out in the mail list (https://groups.google.com/d/msg/golang-nuts/tlPpLW6aJw8/NT3mpToH-a4J). 2012-12-12: The following functions will be DEPRECATED with Go release 1.0.3+1 and REMOVED with Go release 1.0.3+2, b/c of http://code.google.com/p/go/source/detail?r=954a79ee3ea8

The chromath package provides math functions for common colorspace transformations including customizable RGB working space to XYZ transformations and commonly used CIE colorspaces including CIELAB, CIELUV, and their cylindrical coordinate counterparts. Addtionally it provides convenient and performant application of commonly used chromatic adaptation transforms. Most transformations are invoked on methods of transformer objects. A transformer receiver can therefore precompute certain aspects of the transform such as a combined chromatic adaptation and working space transform matrix.

Package math provides helper functions for mathematical operations over all integer Go types. Almost all files in this package are automatically generated. To regenerate this package This package relies on github.com/davecheney/godoc2md.

Package math provides basic constants and mathematical functions.