- #1
Saladsamurai
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I am working through a problem from a Fluid Dynamics course and I have gotten to a point on a problem where it says to "… expand the resulting expression for small values of a2/(bz) and for small z/b … "
I am not so sure how to interpret this? The expression that I am supposed to expand is:
[tex]F(z) = \frac{m}{2\pi}\ln\left [ \frac{(z+b)(z+a^2/b)}{(z-b)(z-a^2/b)}\right ] - \frac{mi}{2}[/tex]
where i is the imaginary number.
Also: do you think it is supposed to say "expand for small z/b" ? Or should it be for small "b/z" ?
I cannot seem to see where any (z/b)'s would come from?
I am not so sure how to interpret this? The expression that I am supposed to expand is:
[tex]F(z) = \frac{m}{2\pi}\ln\left [ \frac{(z+b)(z+a^2/b)}{(z-b)(z-a^2/b)}\right ] - \frac{mi}{2}[/tex]
where i is the imaginary number.
Also: do you think it is supposed to say "expand for small z/b" ? Or should it be for small "b/z" ?
I cannot seem to see where any (z/b)'s would come from?
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