Whew, fantastic! Thank you. (Should I tell the Fundamentals I students about R6RS?)
On Tue, Sep 20, 2016 at 11:32 AM, Asumu Takikawa <as...@simplyrobot.org> wrote: > On 2016-09-20 11:27:07 -0400, Ben Greenman wrote: > > Oh! Just found that common lisp used these for types: > > - s = short > > - f = single > > - d = double > > - l = long > > I think it's more specifically an R6RS thing. Quoth the standard: > > In systems with inexact number objects of varying precisions, it may be > useful > to specify the precision of a constant. For this purpose, > representations of > number objects may be written with an exponent marker that indicates the > desired precision of the inexact representation. The letters s, f, d, > and l > specify the use of short, single, double, and long precision, > respectively. > (When fewer than four internal inexact representations exist, the four > size > specifications are mapped onto those available. For example, an > implementation > with two internal representations may map short and single together and > long > and double together.) In addition, the exponent marker e specifies the > default > precision for the implementation. The default precision has at least as > much > precision as double, but implementations may wish to allow this default > to be > set by the user. > > http://www.r6rs.org/final/html/r6rs/r6rs-Z-H-7.html#node_sec_4.2.8 > > Cheers, > Asumu > -- You received this message because you are subscribed to the Google Groups "Racket Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to racket-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
