println(last([2,4,6,8])) 输出: 3 10 9 8 示例2: # Julia program to illustrate # the use of last() method # Getting the last element of # the specified 2D and 3D array println(last([35;79])) println(last(["a""b";"c""d"])) println(last(cat([12;34],[56;78], [22;...
julia>Int8[1,2,3,4,5]5-element Array{Int8,1}:12345julia> 只要我们把元素类型的字面量放在左中括号的左侧就可以达到目的了。这不仅可以用在数组值的一般表示法上,还可以在拼接数组的时候加以运用。例如: 代码语言:javascript 复制 julia>Int8[[1];[2,3];4;5]5-element Array{Int8,1}:12345julia>...
(1,2,3) 6 julia> x -> x^2 + 2x - 1 #3 (generic function with 1 method) julia> map(x -> x^2 + 2x - 1, [1,3,-1]) 3-element Array{Int64,1}: 2 14 -2 julia> function foo(a,b) a+b, a*b end; julia> foo(2,3) (5, 6) julia> x, y = foo(2,3); julia>...
#3(genericfunctionwith1 method)julia>map(x -> x^2 + 2x - 1, [1,3,-1])3-elementArray{Int64,1}:214-2julia>functionfoo(a,b)a+b,a*bend;julia> foo(2,3) (5,6) julia> x, y = foo(2,3); julia> x5julia> y6 控制流 julia> z =beginx =1y =2x + yend3julia>functiontest...
4-element Array{Int64,1}: 16 9 4 1 索引编制 实施方法 简要描述;简介 getindex(X, i) X[i],索引元素访问 setindex!(X, v, i) X[i] = v,索引分配 firstindex(X) 第一个索引,用于 X[begin] lastindex(X) 最后一个索引,用于 X[end] 对于Squares上面的可迭代项,我们可以i通过平方来轻松计算序...
3-element Array{Int64,1}: 1 8 27 julia> 1 == 1 true julia> NaN == NaN false julia> NaN != NaN true julia> julia> 'x' 'x': ASCII/Unicode U+0078 (category Ll: Letter, lowercase) julia> Int('x') 120 julia> str = "Hello, world.\n" ...
julia/array.jl at master · JuliaLang/Julia - Github ベクトルから行列に julia>a=Vector(1:3)3-elementArray{Int64,1}:123julia>a[:,:]# 軸追加3×1Array{Int64,2}:123julia>b=Vector(4:6);[ab]# 結合3×2Array{Int64,2}:142536
L last, launch, lbeta, lcfirst, lcm, ldexp, leading_ones, leading_zeros, length, less, lexcmp, lexless, lfact, lgamma, linreg, linspace, listen, listenany, LoadError, lock, log, log10, log1p, log2, logabsdet, logdet, logspace, lowercase, lpad, lstat, lstrip, ltoh, lu, lufact...
julia> x=1010julia> x+111julia> x^2100julia> piπ = 3.1415926535897...julia> sqrt(100)10.0julia> ~123-124julia> 123 & 234106julia> ~UInt32(123)0xffffff84julia> [1,2,3] .^ 33-element Array{Int64,1}: 1 8 27julia> 1 == 1truejulia> NaN == NaNfalsejulia> NaN != NaNtruejuli...
1x = zeros(4, 4) # 4x4 array of zeros2y = zeros(4) # 4 element array3z = 2# a scalar4# y's 1st dimension gets repeated for the 2nd dimension in x5# and the scalar z get's repeated for all dimensions6# the below is equal to `broadcast(+, broadcast(+, xx, y), z)`7x ...