## Natural Logirthm Unknown Value

Complex numbers, rational functions, logarithms, sequences and series, matrix operations, etc.
elipotvin
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Joined: Tue Jun 22, 2010 4:34 pm
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### Natural Logirthm Unknown Value

Hello, this is my first time on this site and I need some help with a natural logarithm equation with one unknown.

13.14587 - 1.77412x - 3.74394x^2 = ln(2*x/a) - (4.6e^-6)*(x^2)/a

the x values i need to solve for are 0.6-1.2 in increments of 0.1

I need to solve for the value of a at each value of x.

Would someone be able to help me simply this equation to solve for a. Thank you very much

stapel_eliz
Posts: 1686
Joined: Mon Dec 08, 2008 4:22 pm
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Since one copy of $a$ is inside a log and the other is inside a rational expression, I don't believe it is possible to solve this for $a$ algebraically. You'll have to work numerically.