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PorductLog
How do I can typing this formula on excel? http://functions.wolfram.com/Element...uctLog2/06/01/ Does'nt matter what -- lucas_php ------------------------------------------------------------------------ lucas_php's Profile: http://www.excelforum.com/member.php...o&userid=26275 View this thread: http://www.excelforum.com/showthread...hreadid=395660 |
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#2
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http://functions.wolfram.com/Element...06/01/02/0001/ This formula is easy, but the [Ellipsis] its difficult: -1 + sqrt(sqrt(2)*sqrt(exp(z)+1)) - ((sqrt(sqrt(2)*sqrt(exp(z)+1))/3) + (11/72)*(sqrt(sqrt(2)*sqrt(exp(z)+1)^(2/3) + [Ellipsis] the Ellipsis I don't know I do (Sorry my english LoL) -- lucas_php ------------------------------------------------------------------------ lucas_php's Profile: http://www.excelforum.com/member.php...o&userid=26275 View this thread: http://www.excelforum.com/showthread...hreadid=395660 |
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#3
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I would put z in a separte cell A1
I would put e(z) in a separate column, say A2 And have cell (A3) for p A1: =(some numerical value) A2=EXP(A1) A3 =SQRT(2)*SQRT(A2+1) For the Lambert function A4: =-1 +sqrt(A3) - A3/3 + (11/72)*A3^(3/2) The ellipses part means (.....) you keep adding terms until tyou get the required precision. However the Wolfram articel does not tell how to generate the next term in the series: p/3, (11/72)p^(3/2), ... This articel might help http://en.wikipedia.org/wiki/Lambert%27s_W_function best wishes -- Bernard V Liengme www.stfx.ca/people/bliengme remove caps from email "lucas_php" wrote in message ... http://functions.wolfram.com/Element...06/01/02/0001/ This formula is easy, but the [Ellipsis] its difficult: -1 + sqrt(sqrt(2)*sqrt(exp(z)+1)) - ((sqrt(sqrt(2)*sqrt(exp(z)+1))/3) + (11/72)*(sqrt(sqrt(2)*sqrt(exp(z)+1)^(2/3) + [Ellipsis] the Ellipsis I don't know I do (Sorry my english LoL) -- lucas_php ------------------------------------------------------------------------ lucas_php's Profile: http://www.excelforum.com/member.php...o&userid=26275 View this thread: http://www.excelforum.com/showthread...hreadid=395660 |
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