README.md

JamaSwift

Jama for Swift
Swift for Linear Algebra(Vector/Matrix).
It is translated from Jama(Java Matrix Package) and I call it Sama.
Thanks for Jama's source and I translate it to Swift.
If there is something wrong, please tell me as soon as possible.

Usage

Its Class and Method are the same as Jama, so you can google Jama for it's usage.

欢迎加群905506227交流讨论

感谢Jama团队开放的源代码
Jama Swift是基于Jama(Java Matrix Package)翻译成Swift版本的一款可以实现线性代数向量、矩阵运算的库
我称之为Sama
Jama Swift所有类与方法均与Jama一致，具体用法直接搜索Jama即可
不需要第三方库的支持，均使用Swift原生编写
如有错误，欢迎大家指正

Demo

let aa:[[Double]] = [[10.0,20.0,30.0],[12.0,24.0,46.0],[34.0,58.0,12.0]]
do {
    let mat = try Matrix(paramArrayOfDouble: aa)
    print("cond:  \(mat.cond())") 
    print("rank:  \(mat.rank())") // 秩
    print("chol:  \(mat.chol().getL().getArray())")
    print("trace: \(mat.trace())") // 迹
    print("transpose:\(mat.transpose().getArray())") // 转置
    let r = try mat.det() // 行列式的值
    print("det:   \(r)")
    let c = try mat.lu().det()
    let d = try mat.inverse().getArray() // 逆矩阵
    print("inverse: \(d)")
    print("特征值: \(mat.eig().getD().getArray())") // 特征值
    print("特征向量: \(mat.eig().getV().getArray())") // 特征向量
    // mat.times(Matrix) 矩阵乘法
    } catch {
    print(error)
}