You can plot a complex list.

Try

L =: _1j1 0 1j1

and

plot L

plot 0j1 + L

plot 0j1 * L

(It is easy to translate and rotate a plot defined by a complex list.)


Challenge: devise a conjunction ellipse that produces a complex list for 
plotting the ellipse

1 = (*: x % a) + (*: y % b)   NB.  In algebra x^2/a^2 + y^2/b^2 = 1

The command

plot a ellipse b

should produce a plot of the above ellipse.


Easier: devise an adverb parabola that produces complex numbers for plotting 
the parabola

(*: x) = 4 * p * y

You want the command

plot p parabola c to d

to plot the above parabola for x in the interval from c to d.


Here is verb "to"

 to =: [ + -~ * 1r512 * [: i. 513"_
 
 NB. c to d produces 513 equally spaced values from (real) c to d


Above tested on my iPad

    IFIPAD
 1
    VERSION
 1.3 5


--Kip Murray

Sent from my iPad

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