Please satisfy my curiosity regarding your use of multiple question marks. Do the second and subsequent question marks indicate a decreasing level of understanding of the mathematical concept at hand, or an increasing level of your sense of urgency to get the answer? Is there a standardized quantitative scale that I can use to determine at least the relative meaning of three question marks as compared to say, two or even four or five?
Get out your scientific calculator (or open the built-in Windows or Mac calculator and put it into Scientific mode). Enter the numbers representing the argument of the logarithm you want to find. Pres the log or ln key. The display will show you either the base 10 or base e logarithm of the argument you entered.
Here's what the Windows 7 version of the Scientific Calculator looks like:
Alternatively, Google "log of ..." or "ln of ..." entering the desired argument. Google will give you the result directly.
John
My calculator said it, I believe it, that settles it
