#*-------------------------------------------------------------------
* EMSO Model Library (EML) Copyright (C) 2004 - 2007 ALSOC.
*
* This LIBRARY is free software; you can distribute it and/or modify
* it under the therms of the ALSOC FREE LICENSE as available at
* http://www.enq.ufrgs.br/alsoc.
*
* EMSO is distributed under the terms of the ALSOC LICENSE as
* available at http://www.enq.ufrgs.br/alsoc.
*-----------------------------------------------------------------------
* Author: Jonathan Ospino
* $Id: TrigFcns.mso  2012$
*---------------------------------------------------------------------*#

using "types";

Model Trig_Fcns

ATTRIBUTES
Pallete=true;
Icon="icon/Trig_Fcns";
Info="== Trigonometric functions block ==

	  It computes the trigonometric functions sin(x), cos(x), tan(x), cot(x),
	  sec(x), csc(x), asin(x), acos(x), atan(x), acot(x), asec(x), acsc(x), sinh(x),
	  cosh(x), tanh(x), coth(x), sech(x), and csch (x) of the
	  input signal, x. The resulting value is assigned to the output variable";

PARAMETERS
Select_a_function as Switcher(Valid=["sin(x)","cos(x)","tan(x)","cot(x)","sec(x)","csc(x)","asin(x)","acos(x)","atan(x)","acot(x)","asec(x)","acsc(x)"],Default="sin(x)");


VARIABLES
in In as Real(Brief="Input signal",PosX=0,PosY=0.5);
out Out as Real(Brief="Output signal",Protected=true,PosX=1,PosY=0.5);

EQUATIONS

switch Select_a_function
	
	case "sin(x)":
	Out=sin(In*'rad');
	
	case "cos(x)":
	Out=cos(In*'rad');
	
	case "tan(x)":
	Out=sin(In*'rad')/cos(In*'rad');
	
	case "cot(x)":
	Out=cos(In*'rad')/sin(In*'rad');
	
	case "sec(x)":
	Out=1/cos(In*'rad');
	
	case "csc(x)":
	Out=1/sin(In*'rad');
	
	case "asin(x)":
	Out=asin(In);
	
	case "acos(x)":
	Out=acos(In);
	
	case "atan(x)":
	Out=atan(In);
	
	case "acot(x)":
	Out=1/atan(In);
	
	case "asec(x)":
	Out=1/acos(In);
	
	case "acsc(x)":
	Out=1/asin(In);

end

end