Is this a good use for lambda
Jp Calderone
exarkun at divmod.org
Sat Dec 18 01:04:46 CET 2004
On Fri, 17 Dec 2004 15:58:09 -0800, Charlie Taylor <charlie at ezweave.com> wrote:
>
> I find that I use lambda functions mainly for callbacks to things like
> integration or root finding routines as follows.
>
> flow = integrate(lambda x: 2.0*pi * d(x)* v(x) * sin(a(x)),xBeg, xEnd)
>
> root = findRoot(xBeg, xEnd,
> lambda x: y2+ lp*(x-x2) -wallFunc( x )[0], tolerance=1.0E-15)
>
> I have tried using named functions instead of using lambda functions,
> however, I always end up with a convoluted, hard to follow mess.
>
> Is there a better solution than a lambda in the above situations?
Yes. Your code is horribly unreadable. You should not even be
allowed near a computer. Your lambdas, in order of definition,
should obviously be named twicePiTimesDxVxTimesSinAx and
y2PlusLpTimesTheQuantityXLessX2LessWallFuncXOfZero.
Please be more careful and attentive in the future.
Jp
More information about the Python-list
mailing list