IMPLEMENTATION MODULE MathLib0; IMPORT Mathlib; PROCEDURE cos(arg: REAL): REAL; BEGIN RETURN Mathlib.cos(arg); END cos; PROCEDURE sin(arg: REAL): REAL; BEGIN RETURN Mathlib.sin(arg); END sin; PROCEDURE arctan(arg: REAL): REAL; BEGIN RETURN Mathlib.arctan(arg); END arctan; PROCEDURE sqrt(arg: REAL): REAL; BEGIN RETURN Mathlib.sqrt(arg); END sqrt; PROCEDURE ln(arg: REAL): REAL; BEGIN RETURN Mathlib.ln(arg); END ln; PROCEDURE exp(arg: REAL): REAL; BEGIN RETURN Mathlib.exp(arg); END exp; PROCEDURE entier(x: REAL): INTEGER; BEGIN IF x < 0.0 THEN RETURN - TRUNC(-x); END; RETURN TRUNC(x); END entier; PROCEDURE real(x: INTEGER): REAL; BEGIN IF x < 0 THEN RETURN - FLOAT(-x); END; RETURN FLOAT(x); END real; BEGIN END MathLib0.