Home Original page

Bad Math Module Notation re: atan2

Harald Hanche-Olsen hanche at math.ntnu.no
Sat Jun 3 12:38:37 EDT 2000 
+ david_ullrich at my-deja.com:

| In article <pcovgzstc9b.fsf at math.ntnu.no>,
|   Harald Hanche-Olsen <hanche at math.ntnu.no> wrote:
| [...]
| > The documentation (meaning the library reference) is wrong,
| > [...]
| > In fact, even the function's doc string is right (Py 1.5.2):
| >
| > >>> print math.atan2.__doc__
| > atan2(y, x)
| >
| > Return atan(y/x).
| 
|     As opposed to the 1.5.2 library reference, which says
| 
| atan2 (y, x)
|     Return atan(y / x).
| 
| Looks kinda the same to me... (maybe you got a different
| version of the docs?)

Seems I have the 1.5.1 library reference.  My net access during this
year of exice in the US of A isn't as good as it used to be, so I tend
to be a bit tardy in getting the latest and greatest, whether it be
docs or software.  And what's more, the 1.5.1 docs say

atan2 (x, y) 
     Return atan(x / y). 

which now that I read it more carefully isn't wrong, it just tends to
lead your thoughts in the wrong direction.

and-who-said-letters-aren't-magical-ly y'rs,
-- 
* Harald Hanche-Olsen     <URL:http://www.math.ntnu.no/~hanche/>
- "There arises from a bad and unapt formation of words
   a wonderful obstruction to the mind."  - Francis Bacon
More information about the Python-list mailing list