www.gusucode.com > wavelet工具箱matlab源码程序 > wavelet/wavelet/@laurpoly/minus.m
function P = minus(A,B) %MINUS Laurent polynomial subtraction. % P = MINUS(A,B) returns a Laurent polynomial which is % the difference of the two Laurent polynomials A and B. % M. Misiti, Y. Misiti, G. Oppenheim, J.M. Poggi 19-Mar-2001. % Last Revision: 06-May-2008. % Copyright 1995-2008 The MathWorks, Inc. P = plus(A,-B);