Hi every one
I have a restriction that if x greater than delta h(n)=f(x), if x is between -delta and delta h(n)=g(x) and otherwise h(n)=k(x) that x is vareible. how modeling This limits in Gams?
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Hi,
You need to use disjunctive model. To be more specific, a binary variable and a big number. Let’s consider the case if x greater than delta then h(n)=f(x) and if x is less than delta h(n)=g(x). in the following u is a binary variable and M is a big number,
x+(1-u)M>delta
x-uM<delta
h(n)=uf(x)-(1-u)g(x)
Omid,
On Tuesday, December 22, 2015 at 3:53:35 AM UTC-6, teimori....@gmail.com wrote:
Hi every one
I have a restriction that if x greater than delta h(n)=f(x), if x is between -delta and delta h(n)=g(x) and otherwise h(n)=k(x) that x is vareible. how modeling This limits in Gams?
–
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