picolisp

commit 1bc1ab9fcfe5bee18af6897c34f4eb734f55eff9
parent 3d25c269920d9108898ce2fb3696092ecf29f548
Author: Commit-Bot <unknown>
Date:   Sat, 26 Jun 2010 05:03:19 +0000

Automatic commit from picoLisp.tgz, From: Sat, 26 Jun 2010 05:03:19 GMT
Diffstat:
M
ReleaseNotes
 | 
12
+++++++++++-

1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/ReleaseNotes b/ReleaseNotes
@@ -1,4 +1,4 @@
-11jun10abu
+26jun10abu
 (c) Software Lab. Alexander Burger
 
 
@@ -38,3 +38,13 @@ F. The stack is now checked at runtime (also only in the 64-bit version). This
    operating system sent a segmentation violation signal. With the stack checks,
    a controlled error handler is entered upon stack overflow. The stack segment
    size can be manipulated with the new 'stack' function.
+
+G. There is now a basic rational arithmetics package (fractional numbers) in
+   "lib/frac.l". Fractions are represented as dotted pairs.
+
+      : (f+ (1 . 2) (1 . 3))
+      -> (5 . 6)
+      : (f* (1 . 2) (1 . 3))
+      -> (1 . 6)
+      : (let S (frac 0 1) (for N 10 (setq S (f+ S (frac 1 N)))))
+      -> (7381 . 2520)