DEFINITION MODULE MathLib0; (* Version 1.2 of 94/07/08 *) PROCEDURE sqrt (x: REAL): REAL; PROCEDURE exp (x: REAL): REAL; PROCEDURE ln (x: REAL): REAL; PROCEDURE sin (x: REAL): REAL; PROCEDURE cos (x: REAL): REAL; PROCEDURE arctan (x: REAL): REAL; PROCEDURE real (x: INTEGER): REAL; PROCEDURE entier (x: REAL): INTEGER; END MathLib0.