These strips are corny at first sight, but I love how many levels they work on. This one’s a good example. (For those who missed it, the two series are cosine and sine respectively; naturally COsine completes sine, but more important, stick those two series together and multiply the second by i, and you get the series for e^ix.)
These strips are corny at first sight, but I love how many levels they work on. This one’s a good example. (For those who missed it, the two series are cosine and sine respectively; naturally COsine completes sine, but more important, stick those two series together and multiply the second by i, and you get the series for e^ix.)