The Ritz Method for Boundary Problems with Essential Conditions as Constraints

Table 3

Central (; ) and boundary (; ) error relative to maximum bending deflection of an SS-SS-SS-SS square plate of unit size.

	Central error%	Boundary error%
,	26.14	−89.03
,	2.81	−3.7
,	1.68	−4.4
,	0.56	−1.1