What is the equation for my graph and how can I use Eulers formula to help me?

AI Thread Summary
The discussion revolves around finding the equation for a specific graph and utilizing Euler's formula to assist in this process. The user has provided a link to the graph and noted parameters such as fmax(t)=1 and T=2Pi, along with harmonic levels indicated by odd integers. Participants emphasize the need for clarity in the user's question, suggesting they restate it and share their current progress. The user is uncertain which specific Euler formula to apply, indicating a lack of direction in their approach. Overall, the thread highlights the importance of clear communication and detailed information in problem-solving.
karlis123
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Homework Statement



Since the exercise has a graph I uploded it here :http://imageshack.us/photo/my-images/833/img9845wz.jpg/

fmax(t)=1 T=2Pi
h=1,3,5,7,...
Also I was told that I could use Eulers formula here.


Homework Equations


maybe someone could give me some tips how to make the equations necessary to draw this in excel.
Thank you in advance!



The Attempt at a Solution

 
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We're not mind readers. I, and most likely every other person on this forum, have no idea what your question is.

1) Restate the question exactly.
2) Present your work so far.
3) There's lots of formulas related to Euler, which one are you referring to!?
 
1.My question basically is: how to get the equation of my graph.
2.So far I have discovered that this has something to do with harmonic levels, I've gotten some quite similar graphs, but still something is not right
3.I was just told that I could use some Eulers formula, but not sure which.
 
Thread 'Variable mass system : water sprayed into a moving container'

Thread 'Variable mass system : water sprayed into a moving container'

Starting with the mass considerations #m(t)# is mass of water #M_{c}# mass of container and #M(t)# mass of total system $$M(t) = M_{C} + m(t)$$ $$\Rightarrow \frac{dM(t)}{dt} = \frac{dm(t)}{dt}$$ $$P_i = Mv + u \, dm$$ $$P_f = (M + dm)(v + dv)$$ $$\Delta P = M \, dv + (v - u) \, dm$$ $$F = \frac{dP}{dt} = M \frac{dv}{dt} + (v - u) \frac{dm}{dt}$$ $$F = u \frac{dm}{dt} = \rho A u^2$$ from conservation of momentum , the cannon recoils with the same force which it applies. $$\quad \frac{dm}{dt}...
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