00322nam a2200121Ia 45000030006000000080041000060400015000471000014000622450086000762600009001625460012001710050017001830STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aKumar, V.  aMore geometry through computers parallelograms polygons trigonometry and tangents  c1994  aEnglish20220125160212.0