Syntax for Racket plot

Question

I am trying to follow the racket documentation on how to use 2D plotting. Unfortunately, I can't seem to be able to get it to work (probably something simple)

My code is:

#lang racket
(require plot)
(plot (function sin (-pi) pi #:label "y = sin(x)"))

and the error is:

compile: unbound identifier in module in: function

I am a racket/lisp newbie, so if it is obvious, I just don't realize it. I have also tried inserting (require racket/gui/base) as well as (plot-new-window? #t) but those don't seem to do the trick either.

I'm using racket v5.1.3 on Ubuntu 12.04. I am not using Dr. Racket.

soegaard · Accepted Answer · 2013-03-31 11:50:08Z

5

The problem is that you are reading the documentation for 5.3.3, but has 5.1.3 installed.

In version 5.3.3 the program:

#lang racket
(require plot)
(plot (function sin (- pi) pi #:label "y = sin(x)"))

works as expected.

Either grab a new version from http://racket-lang.org/download/ or take a look at the old documentation: http://download.racket-lang.org/docs/5.1.3/html/plot/plot.html?q=plot

answered Mar 31, 2013 at 11:50

soegaard

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1 Comment

NickO Over a year ago

aha. I just assumed the versions wouldn't be so different (but it looks like they are. Thanks alot!

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