* doco srfi-1 iota
@ 2003-07-07 21:57 Kevin Ryde
2003-07-07 23:16 ` Han-Wen Nienhuys
0 siblings, 1 reply; 3+ messages in thread
From: Kevin Ryde @ 2003-07-07 21:57 UTC (permalink / raw)
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* srfi-modules.texi (SRFI-1 Constructors): In iota, reword a bit for
clarity and add a couple of examples.
I found the formula for each element less clear than it could be, and
thought a couple of examples would be enough to illustrate what
happens.
- Scheme Procedure: iota count [start step]
Return a list containing COUNT numbers, starting from START and
adding STEP each time. The default START is 0, the default STEP
is 1. For example,
(iota 6) => (0 1 2 3 4 5)
(iota 4 2.5 -2) => (2.5 0.5 -1.5 -3.5)
This function takes its name from the corresponding primitive in
the APL language.
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--- srfi-modules.texi.~1.18.~ 2003-06-05 01:47:08.000000000 +1000
+++ srfi-modules.texi 2003-07-06 11:53:08.000000000 +1000
@@ -220,12 +220,17 @@
@end deffn
@deffn {Scheme Procedure} iota count [start step]
-Return a list containing @var{count} elements, where each element is
-calculated as follows:
+Return a list containing @var{count} numbers, starting from
+@var{start} and adding @var{step} each time. The default @var{start}
+is 0, the default @var{step} is 1. For example,
-@var{start} + (@var{count} - 1) * @var{step}
+@example
+(iota 6) @result{} (0 1 2 3 4 5)
+(iota 4 2.5 -2) @result{} (2.5 0.5 -1.5 -3.5)
+@end example
-@var{start} defaults to 0 and @var{step} defaults to 1.
+This function takes its name from the corresponding primitive in the
+APL language.
@end deffn
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2003-07-07 21:57 doco srfi-1 iota Kevin Ryde
2003-07-07 23:16 ` Han-Wen Nienhuys
2003-07-11 22:43 ` Kevin Ryde
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