MATLAB: How to plot this complicated function 2-D

plotwind turbine coefficiancy

Hello everyone.
Im trying yo plot a function which has only 1 variable but it is a complicated function. i know hot to plot y=sin(x) or y=x but for some reason i failed this time . please help.
cp(x) is funtion i want to plot.
x=((23.5*pi*50)/(52.7*V));
y=1/((1/x)-0.035);
cp(x)=0.9*(0.5176*((116/y)-5)*exp(21/y)+(0.0068*x))
but there is 1 more problem.
when i calculate cp(x) in the way described bellow, and plot it in geogebra (I know its not professional ) and also plot cp(x) original funtion by replacing x and y in cp, I get 2 different resaults which are really different. They have same shape though.
syms x;
y=1/((1/x)-0.035);
cp(x)=0.9*(0.5176*((116/y)-5)*exp(21/y)+(0.0068*x));
cp(x)
for this reason I dont want to first calculate cp(x) and then plot it. but if there is no other way then let's do it.

Best Answer

t = linspace(1,10,50);
plot(t,cp(t))
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