2 sin - trigonometric sine
8 x number (real or complex)
9 eps nonzero real, defaults to epsilon()
14 Calculate the sine of x to a multiple of eps with error less in
15 absolute value than .75 * eps.
18 > print sin(1, 1e-5), sin(1, 1e-10), sin(1, 1e-15), sin(1, 1e-20)
19 .84147 .8414709848 .841470984807896 .84147098480789650665
21 > print sin(2 + 3i, 1e-5), sin(2 + 3i, 1e-10)
22 9.1545-4.16891i 9.1544991469-4.16890696i
25 > print sin(pi/6, 1e-10), sin(pi/2, 1e-10), sin(pi, 1e-10)
32 NUMBER *qsin(NUMBER *x, NUMBER *eps)
33 COMPLEX *csin(COMPLEX *x, NUMBER *eps)
36 cos, tan, sec, csc, cot, epsilon