Question

algorithm to find square root

Answer 1

that's not a question

Answer 2

what is the formulae to find algorithm

Answer 3

there's more than one algorithm. Can you give us the context of this question?

Answer 4

you have to spend at least a little bit of time making your question clear if you want anyone to be able to help you ... once I receive clearer information I will be able to help you, but until then I'll have to wait for you...

Answer 5

sorry there was a powercut

Answer 6

so my question is
given a z find a number a such that a^2 = z

Answer 7

may I ask, what course is this for?

Answer 8

I know of a few different ways to approximate a square root, and context can help me here

Answer 9

I am just learning calculus

Answer 10

ok. there is the newton raphson iterative method for approximating the square root.

Answer 11

http://en.wikipedia.org/wiki/Newton's_method#Square_root_of_a_number

Answer 12

I am in class 8 so if you just could make it easier

Answer 13

\(\Huge x_i=x_0-\frac{x_0^2-a}{2x_0};x_0=a\)

Answer 14

erm

Answer 15

\(\Huge x_i=x_{i-1}-\frac{x_{i-1}^2-a}{2x_{i-1}};x_0=a\)

Answer 16

okay this is a little easier

Answer 17

i belief all this is used above class 10

Answer 18

am I correct

Answer 19

I'm not sure what class 8 and class 10 are.

Answer 20

i am studying in class 8 in school and class 10 means boards

Answer 21

ICSC,CBSC

Answer 22

sorry, I am not familiar with your education system. but from where I come from calculus is usually taught at the 12th year of education after kindergarten, although i understood it by the 9th without many issues

Answer 23

its awsm you understood calculus by 9th its actually awsm

Answer 24

you are an american citizen

Answer 25

yes

Answer 26

in your school is calculus taught at class 9??

Answer 27

no. I read a calculus textbook (for fun lol). I took formal calculus class online in 10th grade, but I really didn't do much thinking because I learned it in 9th grade. in my school depending on how good you are at math, you can choose not even to take calculus, or to take it as early as your 11th grade year usually. I worked something out so I managed ot take it 10th grade year

Answer 28

thats awsmmmmmmmmmm what did u find out

Answer 29

well, calculus is learnable pretty early on ( i started concepts of limits when I was around 12) if you take your time and make sure you understand the concepts. Don't be afraid to go through the proofs of theorems, because that's what really makes you understand how things work. Make sure you do plenty of practice, and not just the useless kind, but also the hardest textbook problems. You can use mit OCW or khanacademy (or both) to get where you need to be

Answer 30

in India calculus is taught at class 11 depending on which subject u take and if u dont like maths u can take arts or economics whatever u wish

Answer 31

which class are you in?

Answer 32

well, I finished my in class studies for high school, but I was in discrete mathematics this year... my apologies but I must go to bed...

Answer 33

there is another simplistic approach that does not involve calculus

simply by using the midpoint of guesses you will get closer and closer to the sqrt value

example: sqrt(8)
initial low guess = 1 , high guess = 8

midpoint = 4.5 , 4.5^2 > 8 so 4.5 becomes new high guess

new midpoint = 2.75 , 2.75^2 < 8 so 2.75 becomes new low guess

new midpoint= 3.75 , 3.75^2 > 8 so 3.75 becomes new high guess

new midpoint = 3.25 ....

etc