用于开发税务票据管理的软件

				procedure POLIN2(X1A,X2A:array of real;YA:matrx2; M, N:integer;
				                                      X1, X2:real;var Y, DY:real);
				var
				    YNTMP,YMTMP:array[0..20] of real;
				    J,K:integer;
				begin
				    For J:=1 To M do
				    begin
				        For K:=1 To N do
				            YNTMP[K]:=YA[J, K];
				        POLINT(X2A,YNTMP, N, X2, YMTMP[J], DY);
				    end;
				    POLINT(X1A, YMTMP, M, X1, Y, DY);
				end;