#Mooc question
In exercise 1.4, MIT6_189IAP11_hw1.pdf, how do I code for a 4th root in python. The problem that I am struggling with is finding the 4th root of -19+100. I know the answer but I don't know how to code it. I used the math.sqrt for one of the earlier problems.

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- anonymous

- schrodinger

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- anonymous

I had the same question
http://openstudy.com/study?login#/updates/507db758e4b0eba0db5e9c9e
Best way is use ** operator with 1/4

- anonymous

Thank you. That works

- anonymous

I did X**.25

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## More answers

- anonymous

I puzzled over this wondering if Python had some special way to solve it.
I then remembered that a root is the same as the exponential of the reciprocal
so x = y**(1/4)
Is there a more Pythonesque way to write this?

- anonymous

Oh.
that should have been
x = y**(1.0/4)

- velumani

a longer coding way would be to "import" math module and use math.sqrt function twice, like, math.sqrt(math.sqrt(x)) !!

- anonymous

Is there a way if you import the math module to make an n-root instead of using two square roots in a row ?

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