RosettaCodeData/Task/Trigonometric-functions/Fortran/trigonometric-functions-2.f

 ATAN2(y,x) ! Arctangent(y/x), ''-pi < result <= +pi''
 SINH(x)    ! Hyperbolic sine
 COSH(x)    ! Hyperbolic cosine
 TANH(x)    ! Hyperbolic tangent
September 2017 Update 2017-09-23 10:01:46 +02:00			`ATAN2(y,x) ! Arctangent(y/x), ''-pi < result <= +pi''`
			`SINH(x) ! Hyperbolic sine`
			`COSH(x) ! Hyperbolic cosine`
			`TANH(x) ! Hyperbolic tangent`