P42悬壁梁\AlgebraicComplement.m .........\Assemble.m .........\CalculateDisplacement.m .........\CoefficientMatrix.m .........\ElementInformaiton.m .........\ElementStiffnessBlock.m .........\ElementStress.m .........\GoToOne.m .........\PLot.m .........\PointInformation.m .........\Solution.m .........\this time.m P42悬壁梁