and M. Tanaka, "A meshfree, exponential convergence, integration-free, and boundary-only RBF technique (页面存档备份,存于互联网档案馆)", Computers and Mathematics with
beyond the boundary”隐喻以不同方式或较少限制进行思考,似乎由来已久。例如,1888年,《年度记录》记录了“think outside the lines”这一短语。 最晚自1954年以来,九点谜题就被用来比喻“超越边界的思考”(think beyond the boundary)。早期的说法包括“跳出九点范围”(go
knot method for the Cauchy problem associated with the inhomogeneous Helmholtz equation, Engineering Analysis with Boundary Elements, 29, 925-935, 2005
elliptic boundary value problems. Adv Comput Math 1998;9(1): 69-95 Chen W, Tanaka M. A meshless, exponential convergence, integration-free, and boundary-only