Schüle Daniel wrote:
> Hello,
>
> In [19]: def simple_integral(func,a,b,dx = 0.001):
> : return sum(map(lambda x:dx*x, func(arange(a,b,dx
> :
>
> In [20]: simple_integral(sin, 0, 2*pi)
> Out[20]: -7.5484213527594133e-08
>
> ok, can be thought as zero
>
> In [21]: simple
Schüle Daniel wrote:
> Hello,
>
> In [19]: def simple_integral(func,a,b,dx = 0.001):
> : return sum(map(lambda x:dx*x, func(arange(a,b,dx
> :
>
> In [20]: simple_integral(sin, 0, 2*pi)
> Out[20]: -7.5484213527594133e-08
>
> ok, can be thought as zero
>
> In [21]: simple_
Schüle Daniel <[EMAIL PROTECTED]> writes:
> > return dx * sum(map(func, arange(a,b,dx)))
> yes, this should be faster :)
You should actually use itertools.imap instead of map, to avoid
creating a big intermediate list. However I was mainly concerned that
the original version might be incorrec
[...]
>> In [19]: def simple_integral(func,a,b,dx = 0.001):
>> : return sum(map(lambda x:dx*x, func(arange(a,b,dx
>
> Do you mean
>
> def simple_integral(func,a,b,dx = 0.001):
> return dx * sum(map(func, arange(a,b,dx)))
>
yes, this should be faster :)
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Schüle Daniel <[EMAIL PROTECTED]> writes:
> In [19]: def simple_integral(func,a,b,dx = 0.001):
> : return sum(map(lambda x:dx*x, func(arange(a,b,dx
Do you mean
def simple_integral(func,a,b,dx = 0.001):
return dx * sum(map(func, arange(a,b,dx)))
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http://mail.python.org/mai
my fault
In [31]: simple_integral(lambda x:sinc(x/pi), -1000, 1000)
Out[31]: 3.14046624406611
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