ttaannhh() -- Mathematics Function (libm)

Calculate hyperbolic cosine
#iinncclluuddee <mmaatthh.hh>
ddoouubbllee ttaannhh(_r_a_d_i_a_n) ddoouubbllee _r_a_d_i_a_n;

ttaannhh()  calculates the  hyperbolic tangent  of _r_a_d_i_a_n,  which is  in radian
measure.

_S_e_e _A_l_s_o
lliibbmm, ttaann()
ANSI Standard, section 7.5.3.3
POSIX Standard, section 8.1

_D_i_a_g_n_o_s_t_i_c_s
When an overflow occurs, ttaannhh() sets eerrrrnnoo to EERRAANNGGEE.
