roots ( x t -- seq )

Vocabulary

math.functions

Inputs

x	a number
t	an integer

Outputs

seq	a sequence

Word description

Outputs the t roots of a number x.

Notes

The results are not necessarily real.

Definition

USING: kernel math math.constants sequences ;

IN: math.functions

: roots ( x t -- seq )
    [ [ log ] [ recip ] bi* * e^ ]
    [ recip 2pi * 0 swap complex boa e^ ]
    [ <iota> [ ^ * ] 2with map ] tri ;