％BIQPBOX Bisection reflective line search for sqpbox
％ [nx,nsig,alpha] = BIQPBOX(s,c,strg,x,y,sigma,l,u,...
％ oval,po,normg,DS,mtxmpy,data,H)
％ returns the new feasible point nx, the corresponding sign vector nsig,
％ and the step size of the unreflected step, alpha.
％ Copyright (c) 1990-98 by The MathWorks, Inc.
％ $Revision: 1.2 $ $Date:
％CHECKBOUNDS Move the initial point within the (valid) bounds.
％ [X,LB,UB,X,FLAG] = CHECKBOUNDS(X0,LB,UB,nvars)
％ checks that the upper and lower
％ bounds are valid (LB <= UB) and the same length as X (pad with -inf/inf
％ if necessary) warn if too long. Also make LB and UB vectors if not
％ already.
％ Finally, inf in LB or -inf in UB throws an error.
％DEFINEV Scaling vector and derivative
％
％ [v,dv]= DEFINEV(g,x,l,u) returns v, distances to the
％ bounds corresponding to the sign of the gradient g, where
％ l is the vector of lower bounds, u is the vector of upper
％ bounds. Vector dv is 0-1 sign vector (See ?? for more detail.)
％
％ Copyright (c) 1990-98 by The MathWorks, Inc.
％ $Revision: 1.2 $ $Date: 1998/03/21 16:29:10 $
設給定n 個變量1 x , 2 x ,…, n x 。將這些變量依序作底和各層冪，可得n重冪如下
n x
x x x
3
2
1
這里將上述n 重冪看作是不確定的，當在其中加入適當?shù)睦ㄌ柡螅拍艹蔀橐粋€確定的
n 重冪。不同的加括號方式導致不同的n 重冪。例如，當n=4 時，全部4重冪有5個。
