What is Sqrt() in Python

Question

I'm an intermediate in Python. And I was doing python for finance and I came across this thing called sqrt() and Idk what that is can I have help?

https://www.sololearn.com/learning/1139/5194/13662/1

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Link

Answer 1

sqrt() is a a python function used in a module called "math". This function is used to calculate the square root of the number.

Examples:

print(sqrt(36))
print(sqrt(49))
print(sqrt(81))

Output:

6.0
7.0
9.0

Answer 2

Hey Lamron as you state it's a function of module math.
So first import math and call the function from it.
Import math
print(math.sqrt(x))

Answer 3

Julian Zimpel exactly that, but for **import** command make sure everything is in lowercase

Answer 4

Julian Zimpel you can import some functions from modules, but I would recommend importing the whole module.

**as** keyword allows you to refer to that module with a different name.

Let's say we have a module called **ComputerScienceModule**

It's too long to type each time, therefore you can use **as** keyword to give it a different name in your program.

Example:

import ComputerScienceModule as csm

print(csm.function(value))

Answer 5

Square root.
You can get the same result by calulating number x number
(Or num * num) to get the result.
You can do the opposite by dividing the num by num. Ex: 64 // num || or (float) 64/8

Answer 6

Gemuh Hans Ujjwal Gautam Mr Williams , guys, great examples, but don't forget:

square root operation is integer to float division. i.e. 36/6 = 6.0

It's not a floor division, i.e. 36//6 = 6

Therefore, if we do something like:

print(math.sqrt(36))

We will get 6.0

Because we do: 36/6
Not: 36//6

See example:
https://code.sololearn.com/cn5xPOtDRqNU/?ref=app

Answer 7

Thanks For answering my questions :)

Answer 8

😅 indeed

Answer 9

Lamron your code is fine with:

from math import sqrt as sqrt
print(sqrt(x))

Answer 10

Lamron thats right, thanks for the reminder.

Answer 11

I need help

Answer 12

sqrt() is a function in the math module. It's becomes available when you import it at the start of your code.

Import math

print(math.sqrt(9)) = 3
print (math.sqrt(16)) = 4

And so on

Answer 13

sqrt() is a python function in . Math module
Sqrt (Square Root ) it will calculate the square root of a function

print(sqrt(9))

O/P -- 3

Answer 14

Square Root

Answer 15

Its square root of a number. So example if you

Import Math
Print(math.sqrt(36))

You will get 6

Answer 16

After importing, you could check the number of functions within via print(len(dir(math))); it has 61 functions. If you don't need all of those, importing them is just going to slow the program down unnecessarily. [This site](https://www.w3schools.com/JUMP_LINK__&&__python__&&__JUMP_LINK/module_math.asp) is excellent for exploring the depths of python and other languages.

Answer 17

Why doesn't this support markdown?

Answer 18

Try these both to see if you notice the difference:

from math import sqrt
#one function to parse before use
print(sqrt(81))

#delete the above

import math as iloveslowapps
#61 functions to parse before use
print(sqrt(81)

#by the way, I'm also working through the python for finance