Further, you seem to have specified your grid in the Argand plane, I don't think you can mix and match with reals just like that (I may be wrong - certainly no expert on J plotting). So you'd have to translate your parabola to complex coords if you wanted to display it in the same context, I think.
On 25 April 2014 06:00, alexgian <[email protected]> wrote: > Not quite sure what you're trying to do, but would this be a step in the > right direction? > > > load 'plot' > > do=: 13 :'({.y) +(i.>:{:y)*(--/ 2{.y)%{:y' > > G=:do _2 2 32 > > P=: 2 <. *: > > plot (];P) G > > > In your version you have not specified x-coordinates, so it picks 0-32. > > By using ] you specify the x-range > > > Also note that that you do not need "do", there is a plot builtin called > "steps": > > plot (];P) steps _2 2 32 > > would achieve the same result > > > > > > On 25 April 2014 01:25, Linda Alvord <[email protected]> wrote: > >> Can anyone help me put the parabola, P, on the graph paper without >> changing >> the scales of the graph paper. >> >> load 'plot' >> do=: 13 :'({.y) +(i.>:{:y)*(--/ 2{.y)%{:y' >> A=:do _2 2 8 >> V=:j./~ A >> H=:|:|. V >> 'pensize 2;color 50 255 255' plot H,V >> >> f=:*: >> 'pensize 2;color BLUE' plot P=: 2 <. f do _2 2 32 >> >> Linda >> ---------------------------------------------------------------------- >> For information about J forums see http://www.jsoftware.com/forums.htm >> > > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
