get the sign of given number

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Parameters

sign number :integer :floating :complex :rational :quantity

Returns

Examples

copy
sign 5              ; => 1
sign 0              ; => 0
sign neg 3          ; => -1

copy
sign 2.5            ; => 1
sign 0.0            ; => 0
sign neg 1.7        ; => -1

copy
sign to :rational [3 4]          ; => 1
sign to :rational @[neg 3 4]     ; => -1

copy
sign to :complex @[pi 1]         ; => 1
sign to :complex @[0 neg 1]      ; => -1

Related