On Wed, 1 Sep 2010, xiaomi wrote:
Thanks, Michael. I am sorry there are several typo in my original statement.
Let me recify it as follows:
for example: step function y=u(5);
maxmize y
y<=M(x-5) , where M is a large number to simulate sharp slope.
y<=1;
The only wired thing is that when x<5, y will be y <= a number that is
negative. However if y is nongative as default, can this property restrict
y to be 0 when x<5? (without binary)
No.
If M(x-5) must be less than zero,
the problem described is infeasible.
You'll need to make y binary.
--
Michael [email protected]
"Pessimist: The glass is half empty.
Optimist: The glass is half full.
Engineer: The glass is twice as big as it needs to be."
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