大约有 30,000 项符合查询结果(耗时:0.0452秒) [XML]
How to do exponential and logarithmic curve fitting in Python? I found only polynomial fitting
... 20, 50, 79])
>>> numpy.polyfit(x, numpy.log(y), 1)
array([ 0.10502711, -0.40116352])
# y ≈ exp(-0.401) * exp(0.105 * x) = 0.670 * exp(0.105 * x)
# (^ biased towards small values)
>>> numpy.polyfit(x, numpy.log(y), 1, w=numpy.sqrt(y))
array([ 0.06009446, 1.41648096])
# y ...
Unlink of file failed
...
answered Apr 16 '12 at 21:27
VonCVonC
985k405405 gold badges33953395 silver badges39913991 bronze badges
...
How to create the most compact mapping n → isprime(n) up to a limit N?
...
27
The best method, in my opinion, is to use what's gone before.
There are lists of the first N p...
How to get a list of installed android applications and pick one to run
...
279
Following is the code to get the list of activities/applications installed on Android :
Inten...
JavaScript: Passing parameters to a callback function
...uments to a callback.
– antoine
Jun 27 '15 at 3:03
add a comment
|
...
How to set up a PostgreSQL database in Django
...res', you can change it using the answer here https://stackoverflow.com/a/12721020/1990793 and continue with the steps.
Now create a database
createdb <db_name>
Now create a new user to login to phppgadmin later, providing a new password.
createuser -P <new_user>
Now your postgres...
Bower: ENOGIT Git is not installed or not in the PATH
...
answered Apr 27 '15 at 17:32
Navid GolforoushanNavid Golforoushan
49855 silver badges33 bronze badges
...
Code-first vs Model/Database-first [closed]
...
answered Mar 27 '11 at 1:27
Ladislav MrnkaLadislav Mrnka
345k5656 gold badges638638 silver badges653653 bronze badges
...
Nokogiri installation fails -libxml2 is missing
...the Tin Man
147k3131 gold badges192192 silver badges272272 bronze badges
answered Jun 8 '11 at 10:56
Erik PetersonErik Peterson
4,...
PostgreSQL error: Fatal: role “username” does not exist
...
answered Sep 9 '13 at 23:27
dreesdrees
5,35622 gold badges2323 silver badges2424 bronze badges
...
