Extensive numerical tables of all the elementary functions for real values of their arguments appear in Abramowitz and Stegun (1964, Chapter 4). This handbook also includes lists of references for earlier tables, as do Fletcher et al. (1962) and Lebedev and Fedorova (1960).

For 40D values of the first 500 roots of $\tan x=x$, see Robinson (1972). (These roots are zeros of the Bessel function $J_{3/2}\left(x\right)$; see §10.21.)

For 10S values of the first five complex roots of $\sin z=az$, $\cos z=az$, and $\cosh z=az$, for selected positive values of $a$, see Fettis (1976).

See also Luther (1995).