prohibited zones

Can any body help me dealing with the code for the prohibited zones of operation in Pso. Actually I am dealing with economic load dispatch in that a equation will be there like, Ft=a*P^2+b*P+C and the value of the power should lie between as 100<P<400 but P should not be in the region from 200 to 220 .That means I have to get a solution that P should lie between 100 and 400 but should not lie between 200 and 220

[Jan]

It would be helpful if you use dots to separate the sentences of your question.

Could you please post more details?

[Daniel Shub]

@Jan, The question needs a lot more than a couple of dots and commas. I cannot tell if there is a single complete sentence, a run on sentence, or multiple sentences.