site/contents/reference-num.md
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----- content-type: "page" title: "num Module" ----- {@ _defs_.md || 0 @} {#op||+||{{n1}} {{n2}}||{{n3}}|| Sums {{n1}} and {{n2}}. #} {#op||-||{{n1}} {{n2}}||{{n3}}|| Subtracts {{n2}} from {{n1}}. #} {#op||-inf||{{none}}||{{n}}|| Returns negative infinity. #} {#op||\*||{{n1}} {{n2}}||{{n3}}|| Multiplies {{n1}} by {{n2}}. #} {#op||/||{{n1}} {{n2}}||{{n3}}|| Divides {{n1}} by {{n2}}. #} {#op||even?||{{i}}||{{b}}|| Returns {{t}} if {{i}} is even, {{f}} otherwise. #} {#op||div||{{i1}} {{i2}}||{{i3}}|| Divides {{i1}} by {{i2}} (integer division). #} {#op||inf||{{none}}||{{n}}|| Returns infinity. #} {#op||mod||{{i1}} {{i2}}||{{i3}}|| Returns the integer module of {{i1}} divided by {{i2}}. #} {#op||nan||{{none}}||nan|| Returns **NaN** (not a number). #} {#op||odd?||{{i}}||{{b}}|| Returns {{t}} if {{i}} is odd, {{f}} otherwise. #} {#op||pred||{{i1}}||{{i2}}|| Returns the predecessor of {{i1}}.#} {#op||random||{{i1}}||{{i2}}|| > Returns a random number {{i2}} between 0 and {{i1}}-1. > > > %note% > > Note > > > > You must call `randomize` to initialize the random number generator, otherwise the same sequence of numbers will be returned.#} {#op||randomize||{{none}}||{{null}|| Initializes the random number generator using a seed based on the current timestamp. #} {#op||succ||{{i1}}||{{i2}}|| Returns the successor of {{i1}}.#} {#op||sum||{{q}}||{{i}}|| Returns the sum of all items of {{q}}. {{q}} is a quotation of integers. #} {#op||product||{{q}}||{{i}}|| Returns the product of all items of {{q}}. {{q}} is a quotation of integers. #} {#op||avg||{{q}}||{{n}}|| Returns the average of the items of {{q}}. #} {#op||med||{{q}}||{{n}}|| Returns the median of the items of {{q}}. #} {#op||range||{{q}}||{{q}}|| Takes a quotation of integers in the form of {{start}}, {{end}} (,{{step}}), generates the sequence and returns the resulting quotation of integers. #} |