Question

does anyone know the sqrt(16) how it is written in python 3 as it doesn't work. Thanks

Answer 1

you first have to import the math directory to first it has to be'import math' then you can type math.sqrt(16)

Answer 2

how can i import it ?

Answer 3

i did it thanks a lot.

Answer 4

ya sorry meant to type 'import.math'

Answer 5

import math
x=16
print (math.sqrt(x))

Answer 6

it's probably in the documentation - if you have the documentation file on your computer, go to the index tab and put sqrt in the keyword box

maybe read this too: http://effbot.org/zone/import-confusion.htm

Answer 7

Thanks a ot. That was really helpful

Answer 8

lot

Answer 9

If you're using it a lot in a script, try

from math import sqrt

Then you can leave out the module name

>>>a = sqrt(9)
>>>print a
3
>>>