Integer Modeling Question?

3. Formulate the Logic Constraint for the following statements (where A is a binary variable and x1 and x2 are continuous variables).





a) if A happens then x1 + x2 %26lt;= 50, else x1 +x2 %26lt;=100





b) if A does not happen then x1 + x2 %26gt;=10, else x1 + x2 %26gt;=50|||See links to answer your problem:





http://en.wikipedia.org/wiki/Constraint_…


http://www.riverlogic.com/2010/04/olap-a…





Good luck!