This is a simple question but somehow after trying Delete, Drop I still cannot get what I want. Given the following equation,

eq = (-0.818158 + 
0.725806 Log[0.683526 \[Lambda][1., 2.]] \[Lambda][1., 2.] + 
0.774194 Log[0.744189 \[Lambda][2., 1.]] \[Lambda][2., 1.] + 
0.774194 Log[0.744189 \[Lambda][2., 3.]] \[Lambda][2., 
 3.])/(0.951613 - 0.725806 (0.0444444 + \[Lambda][1., 2.]) - 
0.774194 (0.0208333 + \[Lambda][2., 1.] + \[Lambda][2., 3.]));

I want to drop from this equation all the terms that involve Lamda. (A term is an element between two arithmetic signs like + and -.) because the Lamda is equal to zero and taking Log[0] is infinite. So, I like to get rid of infinity and have a real number as a solution.

Generally speaking, given a list of very large equations, I like to drop Lamda terms with zero from all the equations.

I think it is easier to drop all the terms that generate infinity.

This is a simple question but somehow after trying Delete, and Drop I still cannot get what I want. Given the following equation,

eq = (-0.818158 + 
0.725806 Log[0.683526 λ[1., 2.]] λ[1., 2.] + 
0.774194 Log[0.744189 λ[2., 1.]] λ[2., 1.] + 
0.774194 Log[0.744189 λ[2., 3.]] λ[2., 
 3.])/(0.951613 - 0.725806 (0.0444444 + λ[1., 2.]) - 
0.774194 (0.0208333 + λ[2., 1.] + λ[2., 3.]));

I want to drop from this equation all the terms that involve Lambda. (A term is an element between two arithmetic signs like + and -.) because the Lambda is equal to zero and taking Log[0] is infinite. So, I like to get rid of Infinity and have a real number as a solution.

Generally speaking, given a list of very large equations, I like to drop Lambda terms with zero from all the equations.

I think it is easier to drop all the terms that generate infinity.