Cricket Web for those who know math well.

 25-03-2005, 08:04 AM #1 (permalink) U19 Vice-Captain     Join Date: Aug 2004 Location: Peshawer Pakistan Posts: 539 for those who know math well. how do u find the square root of a number? __________________ behlolnawaz@cricketweb.net Visit Sports Games Studios
 25-03-2005, 08:09 AM #2 (permalink) International Captain     Join Date: Oct 2004 Location: Same place as the Ashes Posts: 5,615 Use your calculator.
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Quote:
 Originally Posted by Buddhmaster Use your calculator.
thats the best answer you will get
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Quote:
 Originally Posted by Buddhmaster Use your calculator.
Finding square roots of of numbers that aren't perfect squares without a calculator

1. Estimate - first, get as close as you can by finding two perfect square roots your number is between.

2. Divide - divide your number by one of those square roots.

3. Average - take the average of the result of step 2 and the root.

4. Use the result of step 3 to repeat steps 2 and 3 until you have a number that is accurate enough for you.

Example: Calculate the square root of 10 to 2 decimal places.

1. Find the two perfect square numbers it lies between.

Solution:
(3)2 = 9 and (4)2 = 16, so lies between 3 and 4.

2. Divide 10 by 3. 10/3 = 3.33 (you can round off your answer)

3. Average 3.33 and 3. (3.33 + 3)/2 = 3.1667

Repeat step 2: 10/3.1667 = 3.1579
Repeat step 3: Average 3.1579 and 3.1667. (3.1579 + 3.1667)/2 = 3.1623

Try the answer --> Is 3.1623 squared equal to 10? 3.1623 x 3.1623 = 10.0001

If this is accurate enough for you, you can stop! Otherwise, you can repeat steps 2 and 3.

Note: There are a number of ways to calculate square roots without a calculator. This is only one of them.
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Quote:
 Originally Posted by biased indian Finding square roots of of numbers that aren't perfect squares without a calculator 1. Estimate - first, get as close as you can by finding two perfect square roots your number is between. 2. Divide - divide your number by one of those square roots. 3. Average - take the average of the result of step 2 and the root. 4. Use the result of step 3 to repeat steps 2 and 3 until you have a number that is accurate enough for you. Example: Calculate the square root of 10 to 2 decimal places. 1. Find the two perfect square numbers it lies between. Solution: (3)2 = 9 and (4)2 = 16, so lies between 3 and 4. 2. Divide 10 by 3. 10/3 = 3.33 (you can round off your answer) 3. Average 3.33 and 3. (3.33 + 3)/2 = 3.1667 Repeat step 2: 10/3.1667 = 3.1579 Repeat step 3: Average 3.1579 and 3.1667. (3.1579 + 3.1667)/2 = 3.1623 Try the answer --> Is 3.1623 squared equal to 10? 3.1623 x 3.1623 = 10.0001 If this is accurate enough for you, you can stop! Otherwise, you can repeat steps 2 and 3. Note: There are a number of ways to calculate square roots without a calculator. This is only one of them.
I beleive that process is called 'iteration'

 25-03-2005, 11:59 PM #6 (permalink) U19 Vice-Captain     Join Date: Aug 2004 Location: Peshawer Pakistan Posts: 539 thanks biased indian,u r very helpful.
 26-03-2005, 12:54 AM #7 (permalink) Cricketer Of The Year     Join Date: Jan 2005 Location: Testing Forums into the Sunset Posts: 8,442 Haha mang, you could have just used the square root button on your calculator __________________ "If you want a picture of the future, imagine a boot stamping on a human face - for ever."
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Quote:
 Originally Posted by Buddhmaster Use your calculator.

unless you do 4 unit (highest school maths) out here thats what we have been taught
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