trying to understand PDE

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Hi,

I am trying to learn PDE in mathcad,.. Its my first time with PDE, could anyone pls help me with this?

Thanks in advance

1_PDE-xmcd.zip

Calculus_Derivatives

Werner_E

25-Diamond I

Its unclear to me what you are trying to do.

q is treated as the spatial variable name first, but when it comes to the BC you treat it like a functon!?

n(q,t) is neither defined nor searched for.

u is first defined as a function in 1 variable and then used as if its a function in two variables.

Concerning the syntax of the Pdesolve() call Alan pointed you in a previous thread to the appropriate help page. Please read and use the information given there and study the examples and the quicksheet.

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1-Visitor

this became a bit confusive, when i used u many times.

well this is what i want to define actually du/dt (q,t) = -n (q,t)*v (q,t)

what do u mean by BC?

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Werner_E

25-Diamond I

preeti baskaran wrote:
this became a bit confusive, when i used u many times.
well this is what i want to define actually du/dt (q,t) = -n (q,t)*v (q,t)

And what do you know about n and v? You are just searching for u?