MODULE Math;

  CONST
    pi = 3.14159265358979323846;
    e = 2.71828182845904523536;

  PROCEDURE sqrt* (x: REAL): REAL;
  BEGIN RETURN 0 END Sqrt;

  PROCEDURE power* (x, y: REAL): REAL;
  BEGIN RETURN 0 END Power;

  PROCEDURE exp* (x: REAL): REAL;
  BEGIN RETURN 0 END Exp;

  PROCEDURE ln* (x: REAL): REAL;
  BEGIN RETURN 0 END Ln;

  PROCEDURE log* (x: REAL): REAL;
  BEGIN RETURN 0 END Log;

  PROCEDURE round* (x: REAL): REAL;
  BEGIN RETURN 0 END Round;

  PROCEDURE sin* (x: REAL): REAL;
  BEGIN RETURN 0 END Sin;

  PROCEDURE cos* (x: REAL): REAL;
  BEGIN RETURN 0 END Cos;

  PROCEDURE tan* (x: REAL): REAL;
  BEGIN RETURN 0 END Tan;

  PROCEDURE arcsin* (x: REAL): REAL;
  BEGIN RETURN 0 END ArcSin;
 
  PROCEDURE arccos* (x: REAL): REAL;
  BEGIN RETURN 0 END ArcCos;

  PROCEDURE arctan* (x: REAL): REAL;
  BEGIN RETURN 0 END ArcTan;

  PROCEDURE arctan2* (y, x: REAL): REAL;
  BEGIN RETURN 0 END ArcTan2;

  PROCEDURE sinh* (x: REAL): REAL;
  BEGIN RETURN 0 END Sinh;

  PROCEDURE cosh* (x: REAL): REAL;
  BEGIN RETURN 0 END Cosh;

  PROCEDURE tanh* (x: REAL): REAL;
  BEGIN RETURN 0 END Tanh;

  PROCEDURE arcsinh* (x: REAL): REAL;
  BEGIN RETURN 0 END ArcSinh;

  PROCEDURE arccosh* (x: REAL): REAL;
  BEGIN RETURN 0 END ArcCosh;

  PROCEDURE arctanh* (x: REAL): REAL;
  BEGIN RETURN 0 END ArcTanh;

END Math.