Hey, I remember this one from school: you: - first take the log() from each side, - then get the exponent out of the brackets. - then take the exp() from each side. exp(logx)) = x
x = a^b log(x) = log(a^b) log(x) = b * log(a) x = exp( b*log(a) ) you want to do a^(1/2) for a square root, so sqrt(a) = exp( log(a)/2 ) So you're right. Serge. -----Original Message----- From: Alex van den Bogaerdt [mailto:[EMAIL PROTECTED] Sent: Monday, June 09, 2003 1:29 PM To: RRD Users Subject: [rrd-users] Re: Quick RPN question... (Square root in RPN?) On Mon, Jun 09, 2003 at 11:07:40AM +0100, Simon Mullis wrote: > Hello all, > > Am I right in thinking there is no easy way to do a square root in RPN? Isn't a square root the same as exp(log(x)/2) ? CDEF:y=x,LOG,2,/,EXP Not sure,never tried it, just try it yourself. -- Unsubscribe mailto:[EMAIL PROTECTED] Help mailto:[EMAIL PROTECTED] Archive http://www.ee.ethz.ch/~slist/rrd-users WebAdmin http://www.ee.ethz.ch/~slist/lsg2.cgi
