Find the difference between two sets, namely ${\frac{64}{7}, -3 \pi, -1, 4, \frac{6}{e}, \sqrt{2}} \setminus {-1, 7 \sqrt{2}, -9, 5, -3 \pi, \frac{13}{e}, -6 \sqrt{2}, 3}$.
Answer:
${\sqrt{2}, \frac{6}{e}, 4, \frac{64}{7}}$
{'source': 'AMPS', 'file': 'amps/mathematica/counting_and_statistics/set_difference/30151.txt'}