Derek Martin wrote:
Zero is a problem, no matter how you slice it.
I definitely agree with that. Depends on the the real problem that is
behind the OP:s question.
Zero can be considered
positive or negative (mathematically, 0 = -0).
I've read quite a few articles written by
On 20 Aug., 23:38, johnewing [EMAIL PROTECTED] wrote:
I am trying to figure out how to test if two numbers are of the same
sign (both positive or both negative). I have tried
abs(x) / x == abs(y) / y
but that fails when one of the numbers is 0. I'm sure that there is
an easy way to do
I am trying to figure out how to test if two numbers are of the same
sign (both positive or both negative). I have tried
abs(x) / x == abs(y) / y
but that fails when one of the numbers is 0. I'm sure that there is
an easy way to do this. Any suggestions?
Thanks
--
johnewing wrote:
I am trying to figure out how to test if two numbers are of the same
sign (both positive or both negative). I have tried
abs(x) / x == abs(y) / y
but that fails when one of the numbers is 0. I'm sure that there is
an easy way to do this. Any suggestions?
(a 0) == (b 0)
2008/8/20 johnewing [EMAIL PROTECTED]
I am trying to figure out how to test if two numbers are of the same
sign (both positive or both negative). I have tried
abs(x) / x == abs(y) / y
but that fails when one of the numbers is 0. I'm sure that there is
an easy way to do this. Any
On Wed, 20 Aug 2008 14:38:11 -0700, johnewing wrote:
I am trying to figure out how to test if two numbers are of the same
sign (both positive or both negative). I have tried
abs(x) / x == abs(y) / y
but that fails when one of the numbers is 0. I'm sure that there is an
easy way to do
Hm,
It seems my previous reply got lost.
if a*b 0:
print same sign
else
print different sign
johnewing wrote:
I am trying to figure out how to test if two numbers are of the same
sign (both positive or both negative). I have tried
abs(x) / x == abs(y) / y
but that fails
johnewing wrote:
but that fails when one of the numbers is 0. I'm sure that there is
an easy way to do this. Any suggestions?
For the not-so-distant future:
Python 2.6 and 3.0 have a new function copysign in the math module. I
added it during the revamp of the math module. copysign(x, y)
Hi,
Dan's solution is probably the clearest.
Just out of curiousity:.
How would you in your program's context like 0 to be treated.
should it be treated as a positive number or should it be treated as
a case part.
my suggestion a*b 0 for example
wouldn't work if you want 0 to be treated as
nntpman68 wrote:
johnewing wrote:
I am trying to figure out how to test if two numbers are of the same
sign (both positive or both negative). I have tried
abs(x) / x == abs(y) / y
but that fails when one of the numbers is 0. I'm sure that there is
an easy way to do this. Any suggestions?
On Aug 21, 7:46 am, Fredrik Lundh [EMAIL PROTECTED] wrote:
johnewing wrote:
I am trying to figure out how to test if two numbers are of the same
sign (both positive or both negative). I have tried
abs(x) / x == abs(y) / y
but that fails when one of the numbers is 0. I'm sure that
On Wed, Aug 20, 2008 at 02:38:11PM -0700, johnewing wrote:
I am trying to figure out how to test if two numbers are of the same
sign (both positive or both negative). I have tried
abs(x) / x == abs(y) / y
Zero is a problem, no matter how you slice it. Zero can be considered
positive or
I managed to change my dataflow so that an earlier test rules out the
possibility of a zero there. Still, thank you for the fast answers,
this is my first time using the forum. Hopefully I will be able to be
on the question answering end before too long.
thanks again,
john
--
On Aug 21, 1:30 am, Ethan Furman [EMAIL PROTECTED] wrote:
nntpman68 wrote:
johnewing wrote:
I am trying to figure out how to test if two numbers are of the same
sign (both positive or both negative). I have tried
abs(x) / x == abs(y) / y
but that fails when one of the numbers is 0.
Problem: I have an application where I need to print integers differently
depending on whether they are positive or negative. To be more specific, I
have to print something that looks like:
something + 1
something - 1
Note the space between the sign and the number. If I didn't need that
space,
Steven D'Aprano wrote:
Are there any string formatting codes that will place a space between the
sign and the number?
Not that I know of, why not use the absolute value (after checking if
it is negative),
In [1]: abs(-1)
Out[1]: 1
--
http://mail.python.org/mailman/listinfo/python-list
Steven D'Aprano [EMAIL PROTECTED] writes:
def display(**kwargs):
fs = format(kwargs['argument'])
return fs % kwargs
def display(**kwargs):
fs = format(kwargs['argument'])
return fs % dict((x, abs(y)) for x,y in kwargs.iteritems())
--
On Mon, 23 Oct 2006 18:56:21 -0700, Paul Rubin wrote:
Steven D'Aprano [EMAIL PROTECTED] writes:
def display(**kwargs):
fs = format(kwargs['argument'])
return fs % kwargs
def display(**kwargs):
fs = format(kwargs['argument'])
return fs % dict((x, abs(y)) for x,y in
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