Slovník pojmů

Weighting function, residuum, method of weighting residua

If approximation of the solution is substituted to the solved equation, the solved equation is not met exactly. This fact is respected by adding a residual function to the right-hand side of the equation. In order to minimize the residual function (i.e., in order to get as accurate approximation as possible), the residual function is multiplied by a weighting function, the product is integrated over the whole analyzed structure and the result is put to equal zero. This algorithm is called the method of weighted residua.