[challenge] program to finds square root and cube root

Question

[challenge] make a program that finds square root and cube root of number entered by user

RULES
NO use of function
especially in build function like power function, sqrt function , etc.

you can use any language.

Answer 1

here is my try ☺
//without in build functions or libraries
https://code.sololearn.com/cOOLnGNehbOh/?ref=app

Answer 2

Without libraries :
https://code.sololearn.com/cJjPLJy1U87C/?ref=app

Answer 3

I thought he sad no inbuilt functions?

Answer 4

https://code.sololearn.com/WEGfbB4jnO3Q/?ref=app

Answer 5

https://code.sololearn.com/Wt4FNi6LoLTZ/?ref=app

Answer 6

This is by c++ and just for "integer" outputs

https://code.sololearn.com/c3AFfzRJDV1J/#cpp

( edited and fixed the code to don't break the rule )

Answer 7

Can I use the ** operator?
Else it is really hard but there's an algorithm for an approximate

Answer 8

https://code.sololearn.com/cex5AHqmrhKU/?ref=app

https://code.sololearn.com/cByeo2cUVHpR/?ref=app

My sollution in Java. Detailed description in the block comment

The second one is the same sollution, but now using Math.pow( ) method to the ones who likes to improve and expand horizons :)

Answer 9

Fastest when you only need an integer solution https://code.sololearn.com/cJCYuZOgG3vC/?ref=app

Answer 10

It is not much of a challenge to use the ** operator (e.g., x**(1.0/n)). There is no function needed to find roots anyway!

Answer 11

Now includes square root and cube root integer, quick convergence
https://code.sololearn.com/cJCYuZOgG3vC/?ref=app

Answer 12

My solution, computing nth root of a number with an arbitrary precision: https://code.sololearn.com/W3Jn8Qe61BBR/?ref=app

Answer 13

https://code.sololearn.com/cCdmpYYAGzKe/?ref=app

Answer 14

Compares 3 methods : fastsqr binsqr and the naive method used by many solutions proposed here
https://code.sololearn.com/cJCYuZOgG3vC/?ref=app