Puzzle of the Day [modified .2 ]
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Can You Find ROOT of a number on a standard calculator WITHOUT touching the root sign or power sign a power sign also acts like a root sign and believe me you can Easy huh! try it ? tell me the EXACT steps * Easy looking problems are sometimes the most challenging ones Rule # 17: Omit Needless Words - Strunk, William, Jr. ------------------------------------------------------------- Universal DBA | Ajax Rating -- modified at 19:15 Friday 23rd June, 2006
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Use of Bakhshali Formula here[^] ofcourse as suggested by ed.poore and a few others we have to do a guess work , and yes this bakshali formula is actually a version of newtons method and as you will see its uses two iterations in a single step q = A ^ 2 + b = A * A + b example 41 = 6 ^ 2 + 5 = 6 * 6 + 5 Bakhshali Formula says sqrt(q) = sqrt(A^2 + b) = A + b/(2A) - (b/(2A))^2/[2(A + b/(2A))] which comes down to Sqrt(q) = sqrt(A^2 + b) = A + b/(2A) - (b/(2*A))*(b/(2*A)) / (2*(A + b/(2*A))) sqrt(41)[^] = 6 + 5/(2*6) - ((5/(2*6))*(5/(2*6)))/(2*(6 + 5/(2*6)))[^] Mathematical operations used = /, * , + , - have a nice weekend Rule # 17: Omit Needless Words - Strunk, William, Jr. ------------------------------------------------------------- Universal DBA | Ajax Rating
sqrt x = log x/log 2 This I will do if only the sqrt key was not working. If the log key wasn't working either, I would have flunked! Abhishek
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sqrt x = log x/log 2 This I will do if only the sqrt key was not working. If the log key wasn't working either, I would have flunked! Abhishek
AbhishekBK wrote:
sqrt x = log x/log 2
Errr... no it's not. sqrt(9) = 3 log(9) / log(2) = 3.1699250014423123629074778878956
Ryan
"Punctuality is only a virtue for those who aren't smart enough to think of good excuses for being late" John Nichol "Point Of Impact"
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AbhishekBK wrote:
sqrt x = log x/log 2
Errr... no it's not. sqrt(9) = 3 log(9) / log(2) = 3.1699250014423123629074778878956
Ryan
"Punctuality is only a virtue for those who aren't smart enough to think of good excuses for being late" John Nichol "Point Of Impact"
er........... looks like I would have flunked anyway! :laugh: Abhishek
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er........... looks like I would have flunked anyway! :laugh: Abhishek
AbhishekBK wrote:
looks like I would have flunked anyway!
Hehe :)
Ryan
"Punctuality is only a virtue for those who aren't smart enough to think of good excuses for being late" John Nichol "Point Of Impact"
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Quartz... wrote:
ROOT of a number on a standard calculator WITHOUT touching the root sign or power sign a power sign also acts like a root sign
4/2 (4 divided by 2) 2 squared is 4 the square root of 4 is 2. what did i win? :laugh: ...yeah, i heard you.
david s_ wrote:
what did i win?
Square root of -2 Rule # 17: Omit Needless Words - Strunk, William, Jr. ------------------------------------------------------------- Universal DBA | Ajax Rating