NAME tanh, tanhf - hyperbolic tangent functions CONTENTS Library Synopsis Description Return Values See Also Standards LIBRARY .Lb libm SYNOPSIS .In math.h double tanh "double x" float tanhf "float x" DESCRIPTION The tanh and the tanhf functions compute the hyperbolic tangent of x. For a discussion of error due to roundoff, see math(3). RETURN VALUES The tanh and the tanhf functions return the hyperbolic tangent value. SEE ALSO acos(3), asin(3), atan(3), atan2(3), cos(3), cosh(3), math(3), sin(3), sinh(3), tan(3) STANDARDS
