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[Matlab] Plotting two functions of the same variable against each other

by av8or
Tags: thermodynamics
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av8or
#1
Nov15-12, 05:35 PM
P: 2
I need to make two plots of volume as a function of time vs pressure as a function of time. When plotted the graph will have an enclosed area. I am having trouble on how to have matlab plot these two functions against each other.

My experience with matlab is having a function defined in a script file. I have not been exposed to using a function m file to define a function and reference it in a script.

My functions are as follows where (t) is the only variable, everything else is defined earlier in the file. I need to graph P vs Vc and P vs Ve. The order of magnitudes of Vc and Ve is different by 10^-3 hopefully that won't matter.

Vc =@(t) vc*sin(omega*t);
Ve =@(t) ve*cos(omega*t);
A =@(t) Vc(t)/(R*Tc) + vtl/(R*Ttl) + vr/(R*Tr) + Ve(t)/(R*Te);
P =@(t) M/A(t);
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Simon Bridge
#2
Nov15-12, 06:14 PM
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Quote Quote by av8or View Post
I need to make two plots of volume as a function of time vs pressure as a function of time. When plotted the graph will have an enclosed area. I am having trouble on how to have matlab plot these two functions against each other.
Why not just plot the vectors against each other?
av8or
#3
Nov16-12, 12:24 AM
P: 2
Quote Quote by Simon Bridge View Post
Why not just plot the vectors against each other?
I actually had that idea shortly after posting this. Thank you for your response.

Simon Bridge
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Nov16-12, 01:43 AM
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[Matlab] Plotting two functions of the same variable against each other

No worries - sometimes the process of asking a question will produce the answer.


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