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TANIndexNAMEtan, tanf, tanl - tangent functionSYNOPSIS#include <math.h> double tan(double x); float tanf(float x); long double tanl(long double x); DESCRIPTIONThe fBtan()fP function returns the tangent of fIxfP, where fIxfP is given in radians.CONFORMING TOSVID 3, POSIX, BSD 4.3, ISO 9899. The float and the long double variants are C99 requirements.SEE ALSOacos(3), asin(3), atan(3), atan2(3), cos(3), sin(3)
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