*[[מדיה:AlgebraicStructuresEngineering2019Ex2.pdf|תרגיל 2]], [[מדיה:AlgebraicStructuresEngineering2019Ex2Sol.pdf|פתרון]]
*[[מדיה:AlgebraicStructuresEngineering2019Ex3.pdf|תרגיל 3]], [[מדיה:AlgebraicStructuresEngineering2019Ex3Sol.pdf|פתרון]]
*[[מדיה:AlgebraicStructuresEngineering2019Ex4AlgebraicStructuresEngineering2019Ex4Up.pdf|תרגיל 4]], [[מדיה:AlgebraicStructuresEngineering2019Ex4Sol.pdf|פתרון]]