TAN(3) BSD Programmer's Manual TAN(3)
tan, tanf - tangent function
#include <math.h> double tan(double x); float tanf(float x);
The tan() and tanf() functions compute the tangent of x (measured in ra- dians). A large magnitude argument may yield a result with little or no significance. For a discussion of error due to roundoff, see math(3).
The tan() function returns the tangent value.
acos(3), asin(3), atan(3), atan2(3), cos(3), cosh(3), math(3), sin(3), sinh(3), tanh(3)
The tan() function conforms to ANSI X3.159-1989 ("ANSI C"). MirOS BSD #10-current May 2, 1991 1
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