Mine are from the pre-r6rs days are exactly the same definitions as from the GSL, which may differ slightly from those in r6rs. I would have to check. They already exist in Racket in the r6rs stuff. I have no problem with using those definitions instead of the ones from the GSL. <div class="gmail_quote">On Fri, Nov 18, 2011 at 12:22 PM, Ryan Culpepper <<a href="mailto:ryan@cs.utah.edu">ryan@cs.utah.edu</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"> <div class="im">On 11/18/2011 12:13 PM, Neil Toronto wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> I've moved this to dev from a private discussion with Doug, who has just tried the nightly build. On 11/18/2011 11:43 AM, Williams, Doug wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> 2) The plot/utils has nan? and infinite?, which are also exported from the science collection and I had to explicitly exclude them in the require. Can we talk to the powers that be and see about getting them (and finite?) moved to racket/math? Then we can both remove them from our code. [I'm not sure about any interaction with the r6rs functions.] </blockquote> Powers That Be, Doug and I would like `nan?' and `infinite?' to be in `racket/math'. I made an exact equivalent of Doug's `finite?', but called it `regular-real?'. I use it in all kinds of function contracts (it returns #f for non-reals). We would also like that one, with either name, in `racket/math'. </blockquote> </div> How does 'finite?' differ from 'rational?'? If we're making a wishlist, I'd really like '{positive,nonnegative}-{real,rational}?'. Ryan<div class="HOEnZb"><div class="h5"> _________________________________________________ For list-related administrative tasks: <a href="http://lists.racket-lang.org/listinfo/dev" target="_blank">http://lists.racket-lang.org/listinfo/dev</a> </div></div></blockquote></div>