lambda with floats
monkey at joemoney.net
Fri Apr 9 21:03:13 CEST 2010
On 4/9/2010 2:40 PM, Patrick Maupin wrote:
> On Apr 9, 1:22 pm, monkeys paw<mon... at joemoney.net> wrote:
>> On 4/9/2010 3:43 AM, Bas wrote:
>>> On Apr 7, 6:15 am, Patrick Maupin<pmau... at gmail.com> wrote:
>>>> I should stop making a habit of responding to myself, BUT. This isn't
>>>> quite an acre in square feet. I just saw the 43xxx and assumed it
>>>> was, and then realized it couldn't be, because it wasn't divisible by
>>>> 10. (I used to measure land with my grandfather with a 66 foot long
>>>> chain, and learned at an early age that an acre was 1 chain by 10
>>>> chains, or 66 * 66 * 10 = 43560 sqft.)
>>>> That's an exact number, and 208 is a poor approximation of its square
>>> There is no need to remember those numbers for the imperially
>>> challenged people:
>>> In : import scipy.constants as c
>> scipy.constants ??
>> doesn't work for me.
>>> In : def acre2sqft(a):
>>> ...: return a * c.acre / (c.foot * c.foot)
>>> In : acre2sqft(1)
>>> Out: 43560.0
> Basically, he's saying that, instead of remembering the very simple
> "66" and "10" values, you can download and install a multi-megabyte
> gzipped tar file for the scipy project. ;-)
> (Of course, you get a few nice functions thrown in for free along with
> your constants, but downloading scipy for its constants is like
> choosing a sports car for its cupholders.)
yea, the 66 foot chain story is a good one, i cant forget that.
Appreciate the help, i just looked up the SciPY Project download,
it is 40 MB. I'm gonna check it out none the less...
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