The line for my graph isn't showing. Also, only the 'van der Waals equation' shows up on my legend.
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x=(1*0.08206*373.15)./0.06706468 y=-(3.592*1*0.04267)./((0.08206*373.15*0.04267)-3.592) plot(x,y) xlabel('Volume, (L)') ylabel('Pressure, (atm)') axis([0 1 0 400]) legend('van der Waals equation','Ideal Gas equation')
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Niraj Gadakari
le 28 Sep 2017
In the code there is no line. You just have a scalar value x = 456.5844, y = 0.0671.
If one of X or Y is a scalar and the other is either a scalar or a vector, then the plot function plots discrete points. However, to see the points you must specify a marker symbol, for example, plot(X,Y,'o'). Refer to the documentation for plot function.
You can see your data point by executing the following code:
x=(1*0.08206*373.15)./0.06706468;
y=-(3.592*1*0.04267)./((0.08206*373.15*0.04267)-3.592);
plot(x,y,'o')
xlabel('Volume, (L)')
ylabel('Pressure, (atm)')
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