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November 26th, 2011, 11:16 AM   #1
Joined: Sep 2010

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arc length

total arc-length as (t) goes from 0 to pi/2:
x(t)=e^t cos(t)
y(t)=e^t sin(t)

ds=sqrt ((dx/dt)^2+(dy/dt)^2) dt?

kfarnan is offline  
November 26th, 2011, 11:56 AM   #2
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Re: arc length

calculate derivatives and write down the integral which is easy to solve

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