Plotting P-v graph using function file
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Hi everyone.
I am new to Matlab.
I have been assigned to a project where I have to plot the pressure-specific volume graph of steam. I am to obtain my values of specific volume using a pre existing function file named SteamIC.m (what is to be entered into the main module is shown below)
v= SteamIC('vV_p', In1), where In1 is the input argument (in this case pressure)
I have defined my range of pressure values as linspace(0.0061248,220.64)
My issue is that the input argument (In1) must be a single value (scalar)
How am I to find out all of the specific volume values using the pressure range above? As I can only put in one pressure value at a time
Any help appreciated
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Accepted Answer
TADA
on 15 Dec 2018
Edited: TADA
on 15 Dec 2018
v = zeros(1, length(In1));
for i = 1:length(In1)
v(i) = SteamIC('vV_p', In1(i));
end
or the shorter version using arrayfun:
v = arrayfun(@(a) SteamIC('vV_p', a), In1);
4 Comments
TADA
on 15 Dec 2018
Edited: TADA
on 15 Dec 2018
If I Follow, then By function Mean the vector (or Array) v?
I That Case You Can Define Varriables of Any Type Inside Any Control Block (loop, If/Else, Switch, Try/Catch/Finally, etc.)
Bear In Mind That By Declaring Something inside A Loop, It Will Be Overwritten In the next Iteration Of The Loop .
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