NAME tan, tanf - tangent functions CONTENTS Library Synopsis Description Return Values See Also Standards LIBRARY .Lb libm SYNOPSIS .In math.h double tan "double x" float tanf "float x" DESCRIPTION The tan and the tanf functions compute the tangent of x (measured in radians). A large magnitude argument may yield a result with little or no significance. For a discussion of error due to roundoff, see math(3). RETURN VALUES The tan function returns the tangent value. SEE ALSO acos(3), asin(3), atan(3), atan2(3), cos(3), cosh(3), math(3), sin(3), sinh(3), tanh(3) STANDARDS