Not confused by what i mean. How do i get the nth root of a number? -----Original Message----- From: "Brian Yennie" <bri...@qldlearning.com> To: "How to use Revolution" <use-revolution@lists.runrev.com> Sent: 4/20/2009 5:03 PM Subject: Re: convert to scientific notation
Randall, I think you are confusing two different concepts. 10^2 = 100, not 2^10 = 100. What you want is something like this: Step 1) 10^x = 100 Step 2) log 10^x = log 100 Step 3) x log 10 = log 100 Step 4) x = log 100 / log 10 In short, you need to use logarithms and you'll get a formula where x = log y / log z. If you were trying to solve x^10 = 100, then you could do what you suggest and just raise both side to the (1/10)th power. But that number will not be 2 -- it's about 1.58. > I can't remember how to use power function "^" to find the nth root > of a number. To find the 2ndth root of a number we can use the > "sqrt()" function. But to find the nth root???? > > For instance, lets say I want to convert a number to scientific > notation (the 10th root of that number)... I used to know how to use > the power function to do this. Anyone remember how to do it? > > I tried to get the 10th root (scientific notation) of 100 (which > should = 2) by: 100^(1/10) ... but that isn't it. > > Any ideas? I feel brain dead. > > Randall _______________________________________________ use-revolution mailing list use-revolution@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-revolution _______________________________________________ use-revolution mailing list use-revolution@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-revolution