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Re: Solve for positive, real-valued solutions



Try something along this line:

TableForm[Table[{c, Select[Solve[P[c, a] == 0.02, a],
	Head[a /. #1] === Real && (a /. #1) > 0 & ]}, 
	{c, 10}]]

Bob Hanlon

In a message dated 5/14/98 6:30:29 PM, walterj@omega.uta.edu wrote:

>How can I tell Solve[] to give me only positive, real-valued solutions?
>
>Long Version:
>
>I am trying to build a table of values for use in a database. The
>expression is 
>
>P[c_,a_]:=(a^c/c!)/Sum[a^i/i!,{i,0,c}]. 



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