除法错误 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 5.2 浮点数 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 底层算术的特点。在 可能有溢出产生的程序中，对最值边界出现循环进行显式检查是必要的。否则，推荐使用任意精度 算术中的 BigInt 类型作为替代。 下面是溢出行为的一个例子以及如何解决溢出： 5.2. 浮点数 25 julia> 10^19 -8446744073709551616 julia> big(10)^19 10000000000000000000 除法错误 div 函数 函数的整数除法有两种异常情况：除以零，以及使用 -1 去除最小的负数（typemin）。这两种情 况都会抛出一个 DivideError 错误。rem 取余函数和 mod 取模函数在除零时抛出 DivideError 错误。 5.2 浮点数 浮点数字面量也使用标准格式表示，必要时可使用 E-表示法： julia> 1.0 1.0 julia> 1. 1.0 julia> 0.5 0.5 julia> .5 0

Arithmetic Operators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 5.2 Bitwise Operators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . propagation of NaN values in quantities that are known to be zero. See Knuth (1992) for motivation. 5.2 Bitwise Operators The following bitwise operators are supported on all primitive integer types: Expression syntax a:b with a and b both Integers creates a UnitRange. Examples julia> collect(UnitRange(2.3, 5.2)) 3-element Array{Float64,1}: 2.3 3.3 4.3 julia> typeof(1:10) UnitRange{Int64} source Base

Arithmetic Operators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 5.2 Boolean Operators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . propagation of NaN values in quantities that are known to be zero. See Knuth (1992) for motivation. 5.2 Boolean Operators The following Boolean operators are supported on Bool types: Expression Name syntax a:b with a and b both Integers creates a UnitRange. Examples julia> collect(UnitRange(2.3, 5.2)) 3-element Vector{Float64}: 2.3 3.3 4.3 julia> typeof(1:10) UnitRange{Int64} source Base.LinRange

Arithmetic Operators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 5.2 Boolean Operators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . propagation of NaN values in quantities that are known to be zero. See Knuth (1992) for motivation. 5.2 Boolean Operators The following Boolean operators are supported on Bool types: Expression Name syntax a:b with a and b both Integers creates a UnitRange. Examples julia> collect(UnitRange(2.3, 5.2)) 3-element Vector{Float64}: 2.3 3.3 4.3 julia> typeof(1:10) UnitRange{Int64} source Base.LinRange

Arithmetic Operators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 5.2 Boolean Operators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . propagation of NaN values in quantities that are known to be zero. See Knuth (1992) for motivation. 5.2 Boolean Operators The following Boolean operators are supported on Bool types: Expression Name syntax a:b with a and b both Integers creates a UnitRange. Examples julia> collect(UnitRange(2.3, 5.2)) 3-element Vector{Float64}: 2.3 3.3 4.3 julia> typeof(1:10) UnitRange{Int64} source Base.LinRange

Arithmetic Operators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 5.2 Bitwise Operators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . propagation of NaN values in quantities that are known to be zero. See Knuth (1992) for motivation. 5.2 Bitwise Operators The following bitwise operators are supported on all primitive integer types: Expression syntax a:b with a and b both Integers creates a UnitRange. Examples julia> collect(UnitRange(2.3, 5.2)) 3-element Array{Float64,1}: 2.3 3.3 4.3 julia> typeof(1:10) UnitRange{Int64} source Base

Arithmetic Operators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 5.2 Boolean Operators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . propagation of NaN values in quantities that are known to be zero. See Knuth (1992) for motivation. 5.2 Boolean Operators The following Boolean operators are supported on Bool types: Expression Name syntax a:b with a and b both Integers creates a UnitRange. Examples julia> collect(UnitRange(2.3, 5.2)) 3-element Vector{Float64}: 2.3 3.3 4.3 julia> typeof(1:10) UnitRange{Int64} source Base.LinRange

Arithmetic Operators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 5.2 Boolean Operators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . propagation of NaN values in quantities that are known to be zero. See Knuth (1992) for motivation. 5.2 Boolean Operators The following Boolean operators are supported on Bool types: Expression Name syntax a:b with a and b both Integers creates a UnitRange. Examples julia> collect(UnitRange(2.3, 5.2)) 3-element Vector{Float64}: 2.3 3.3 4.3 julia> typeof(1:10) UnitRange{Int64} source Base.LinRange

Arithmetic Operators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 5.2 Boolean Operators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . propagation of NaN values in quantities that are known to be zero. See Knuth (1992) for motivation. 5.2 Boolean Operators The following Boolean operators are supported on Bool types: Expression Name syntax a:b with a and b both Integers creates a UnitRange. Examples julia> collect(UnitRange(2.3, 5.2)) 3-element Vector{Float64}: 2.3 3.3 4.3 julia> typeof(1:10) UnitRange{Int64} source Base.LinRange

Arithmetic Operators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 5.2 Bitwise Operators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . propagation of NaN values in quantities that are known to be zero. See Knuth (1992) for motivation. 5.2 Bitwise Operators The following bitwise operators are supported on all primitive integer types: Expression syntax a:b with a and b both Integers creates a UnitRange. Examples julia> collect(UnitRange(2.3, 5.2)) 3-element Array{Float64,1}: 2.3 3.3 4.3 julia> typeof(1:10) UnitRange{Int64} source Base