. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 4 变量 17 4.1 合法的变量名 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 4.2 命名规范 . . . . . . . . . . . . . . . . . . . . . . 25 浮点数中的零 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 特殊的浮点值 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 5.5 零和一的字面量 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 6 数学运算和初等函数

must be written as +ᵃ x to distinguish it from + ᵃx where ᵃx is the variable name. A particular class of variable names is one that contains only underscores. These identifiers are write-only. I.e. they mathematical functions and operators. These mathematical operations are defined over as broad a class of numerical values as permit sensible definitions, including integers, floating-point numbers, rationals accept any string type. • Like C and Java, but unlike most dynamic languages, Julia has a first-class type for representing a single character, called AbstractChar. The built-in Char subtype of AbstractChar

must be written as +ᵃ x to distinguish it from + ᵃx where ᵃx is the variable name. A particular class of variable names is one that contains only underscores. These identifiers are write-only. I.e. they mathematical functions and operators. These mathematical operations are defined over as broad a class of numerical values as permit sensible definitions, including integers, floating-point numbers, rationals accept any string type. • Like C and Java, but unlike most dynamic languages, Julia has a first-class type for representing a single character, called AbstractChar. The built-in Char subtype of AbstractChar

must be written as +ᵃ x to distinguish it from + ᵃx where ᵃx is the variable name. A particular class of variable names is one that contains only underscores. These identifiers are write-only. I.e. they mathematical functions and operators. These mathematical operations are defined over as broad a class of numerical values as permit sensible definitions, including integers, floating-point numbers, rationals accept any string type. • Like C and Java, but unlike most dynamic languages, Julia has a first-class type for representing a single character, called AbstractChar. The built-in Char subtype of AbstractChar

must be written as +ᵃ x to distinguish it from + ᵃx where ᵃx is the variable name. A particular class of variable names is one that contains only underscores. These identifiers are write-only. I.e. they mathematical functions and operators. These mathematical operations are defined over as broad a class of numerical values as permit sensible definitions, including integers, floating-point numbers, rationals accept any string type. • Like C and Java, but unlike most dynamic languages, Julia has a first-class type for representing a single character, called AbstractChar. The built-in Char subtype of AbstractChar

must be written as +ᵃ x to distinguish it from + ᵃx where ᵃx is the variable name. A particular class of variable names is one that contains only underscores. These identifiers are write-only. I.e. they mathematical functions and operators. These mathematical operations are defined over as broad a class of numerical values as permit sensible definitions, including integers, floating-point numbers, rationals accept any string type. • Like C and Java, but unlike most dynamic languages, Julia has a first-class type for representing a single character, called AbstractChar. The built-in Char subtype of AbstractChar

must be written as +ᵃ x to distinguish it from + ᵃx where ᵃx is the variable name. A particular class of variable names is one that contains only underscores. These identifiers are write-only. I.e. they mathematical functions and operators. These mathematical operations are defined over as broad a class of numerical values as permit sensible definitions, including integers, floating-point numbers, rationals accept any string type. • Like C and Java, but unlike most dynamic languages, Julia has a first-class type for representing a single character, called AbstractChar. The built-in Char subtype of AbstractChar

must be written as +ᵃ x to distinguish it from + ᵃx where ᵃx is the variable name. A particular class of variable names is one that contains only underscores. These identifiers are write-only. I.e. they mathematical functions and operators. These mathematical operations are defined over as broad a class of numerical values as permit sensible definitions, including integers, floating-point numbers, rationals accept any string type. • Like C and Java, but unlike most dynamic languages, Julia has a first-class type for representing a single character, called AbstractChar. The built-in Char subtype of AbstractChar

must be written as +ᵃ x to distinguish it from + ᵃx where ᵃx is the variable name. A particular class of variable names is one that contains only underscores. These identifiers are write-only. I.e. they mathematical functions and operators. These mathematical operations are defined over as broad a class of numerical values as permit sensible definitions, including integers, floating-point numbers, rationals accept any string type. • Like C and Java, but unlike most dynamic languages, Julia has a first-class type for representing a single character, called AbstractChar. The built-in Char subtype of AbstractChar

must be written as +ᵃ x to distinguish it from + ᵃx where ᵃx is the variable name. A particular class of variable names is one that contains only underscores. These identifiers are write-only. I.e. they mathematical functions and operators. These mathematical operations are defined over as broad a class of numerical values as permit sensible definitions, including integers, floating-point numbers, rationals accept any string type. • Like C and Java, but unlike most dynamic languages, Julia has a first-class type for representing a single character, called AbstractChar. The built-in Char subtype of AbstractChar