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Question: new at maple.what does _Z means?

Question:new at maple.what does _Z means?

jpadilla 17 Maple
June 15 2007
1

I'm completely new at maple. I'm solving this equation:

eqn := exp(-a*x)*exp(-b*x)-exp(-c*x)*exp(-d*x)=exp(-a*x)-exp(-c*x);

solve( eqn, {x} );

This is what I get:

eqn := exp(-a*x)*exp(-b*x)-exp(-c*x)*exp(-x*d) = exp(-a*x)-exp(-c*x) {x = -RootOf(exp(_Z+c*_Z/d)-exp(_Z*(a+b)/d)+exp(a*_Z/d)-exp(c*_Z/d))/d}

I can't find what _Z means .Can anybody help? Thanks in advance
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