\title{Using Mathematics to Understand Our World}

Oct 11, 2003 · Task 1: On your calculator, compute e2. There is another curious button on your calculator called ln. Compute ln of the number you just got. What happened? Now compute e10 and then compute ln of that number. Compute ln(e3.4). Compute ln(ex) for a few other values of x, or even graph ln(ex). What happens? There's a word for this. ................
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