They take 10 bytes each. That means, any meaningful table would eat a huge amount of resources. f.e., a sin table with 0.01 precision would take (PI * 2 / 0.01) * 10 = about 6 kilobytes. Also apply that to cos and tan and you'll quickly eat some resources and risk cache misses. And this is a very low precision if you're using long double.
Comparison: floats (precision 0.01) = 2.5 Kilobytes with a meaningful precision, doubles 5 Kilobytes.
