S scottyhoop Member 10+ Year Member 5+ Year Member 15+ Year Member Joined Mar 17, 2006 Messages 468 Reaction score 1 Points 4,551 Age 53 Location Fredericksburg, VA Dental Student Apr 6, 2007 #1 Advertisement - Members don't see this ad Anyone have a good way of estimating natural logs w/o using a calculator?? I am going to miss my calculator on the DAT!!! Thanks! Scott
Advertisement - Members don't see this ad Anyone have a good way of estimating natural logs w/o using a calculator?? I am going to miss my calculator on the DAT!!! Thanks! Scott
S Streetwolf Ultra Senior Member Verified Member 10+ Year Member Dentist 15+ Year Member Joined Oct 25, 2006 Messages 1,801 Reaction score 7 Points 4,571 Location NJ Dentist Apr 6, 2007 #2 ln(0) is undefined (goes towards negative infinity). ln(1/e) = -1 ln(1) = 0 ln(e) = 1 ln(e^2) = 2 e = 2.718 roughly. ln(4.5) for example... It's above e and below e^2. It seems like it's somewhere in the middle, a bit closer to e. I'd guess about 1.5. Answer is 1.507. Upvote 0 Downvote
ln(0) is undefined (goes towards negative infinity). ln(1/e) = -1 ln(1) = 0 ln(e) = 1 ln(e^2) = 2 e = 2.718 roughly. ln(4.5) for example... It's above e and below e^2. It seems like it's somewhere in the middle, a bit closer to e. I'd guess about 1.5. Answer is 1.507.
