I am having trouble with the menu and switch case command because every time I try to get an answer for pressure, I get 5 answers in a matrix instead of one. Does anyone know what I am doing wrong?
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clear all, close all, nfig = 0;
choice = menu('Choose a gas.','Helium Gas','Hydrogen Gas','Oxygen Gas',...
'Chlorine Gas','Carbon Dioxide Gas');
switch choice
case 1
a = 0.0341; b = 0.0237;
case 2
a = 0.244; b = 0.0266;
case 3
a = 1.36; b = 0.0318;
case 4
a = 6.49; b = 0.0562;
case 5
a = 3.59; b = 0.0427;
end
prompt = 'What is the temperature? (C) ';
T = input(prompt)+273;
prompt = 'What is the molar volume? (L/mol) ';
V = input(prompt);
Pressure = VDW(T,V);
prompt = Pressure;
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Answers (1)
Sean de Wolski
on 8 Oct 2014
It must be whatever VDW is doing because running everything up to there gives scalar values.
Put a breakpoint in VDW and see what it's doing!
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