"SI" <[email protected]> 撰寫於郵件新聞:[email protected]... > 簡單的來說，國中的 generalizde function 就是Ax=b > x=(adjA/detA)b這裏有一個古典伴隨矩陣adjA的觀念， > 上面這個解工程書幾乎不引用。 > > 所幸我們能從外文網站找到有關 generalized function > The class of all regular sequences of particularly well-behaved functions > equivalent to a given regular sequence. A distribution is sometimes also > called a "generalized function" or "ideal function." As its name implies, > a generalized function is a generalization of the concept of a function. > For example, in physics, a baseball being hit by a bat encounters a force > from the bat, as a function of time. Since the transfer of momentum from > the bat is modeled as taking place at an instant, the force is not > actually a function. Instead, it is a multiple of the delta function. The > set of distributions contains functions (locally integrable) and Radon > measures. Note that the term "distribution" is closely related to > statistical distributions. ...e.t.c. > ---上面可能是原因。 > --問 數學界不給工程書(Ax=b)正確答案的原因﹖ 老兄，你所說的general function(或distribution) 與Ax=b的解沒啥關係！