发布于 2017-06-21 00:16:58 | 167 次阅读 | 评论: 0 | 来源: 网友投递

这里有新鲜出炉的精品教程，程序狗速度看过来！

Julia 动态高级程序设计语言

Julia 是一个面向科学计算的高性能动态高级程序设计语言。其语法与其他科学计算语言相似。在许多情况下拥有能与编译型语言相媲美的性能。

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Julia 0.6.0 发布了。Julia是一个新的高性能动态高级编程语言。语法和其他编程语言类似，易于其他语言用户学习。Julia拥有丰富的函数库，提供了数字精度、精致的增幅 器（sophisticated amplifier）和分布式并行运行方式。核心函数库等大多数库是由Julia编写，但也用成熟的C和FORTRAN库来处理线性代数、随机数产生和字 符串处理等问题。Julia语言可定义函数并且根据用户自定义的参数类型组合再进行重载。

新的语言特性：

New type system capabilities (#8974, #18457)

• Type parameter constraints can refer to previous parameters, e.g. type Foo{R<:Real, A<:AbstractArray{R}}. Can also be used in method definitions.

• New syntax Array{T} where T<:Integer, indicating a union of types over all specified values of T (represented by a UnionAll type). This provides behavior similar to parametric methods or typealias, but can be used anywhere a type is accepted. This syntax can also be used in method definitions, e.g. function inv(M::Matrix{T}) where T<:AbstractFloat. Anonymous functions can have type parameters via the syntax ((x::Array{T}) where T<:Real) -> 2x.

• Implicit type parameters, e.g. Vector{<:Real} is equivalent to Vector{T} where T<:Real, and similarly for Vector{>:Int} (#20414).

• Much more accurate subtype and type intersection algorithms. Method sorting and identification of equivalent and ambiguous methods are improved as a result.

语言变化：

• "Inner constructor" syntax for parametric types is deprecated. For example, in this definition:

  type Foo{T,S<:Real}      x      Foo(x) = new(x)  end

  

  the syntax Foo(x) = new(x) actually defined a constructor for Foo{T,S}, i.e. the case where the type parameters are specified. For clarity, this definition now must be written as Foo{T,S}(x) where {T,S<:Real} = new(x) (#11310, #20308).

• The keywords used to define types have changed (#19157, #20418).

  In 0.6, immutable and type are still allowed as synonyms without a deprecation warning.

  • immutable changes to struct

  • type changes to mutable struct

  • abstract changes to abstract type ... end

  • bitstype 32 Char changes to primitive type Char 32 end

• ……

完整更新内容请查看更新日志。

下载地址：

• Source code (zip)

• Source code (tar.gz)

历史版本 :
Julia 0.6.0 发布，动态编程语言
Julia 0.4.6 发布，动态编程语言
Julia 0.4.0 发布，动态编程语言
Julia v0.3.0 发布，动态编程语言