plot axis based on a function found online

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Locks
Locks 2013-3-29
I found the following function:
http://www.mathworks.ch/support/solutions/en/data/1-216M68/index.html?product=ML&solution=1-216M68
what do I not to do to be able to save that function to my matlab and is there a way somebody else who hasen't downloaded that file is still able to see what it's doing?

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Walter Roberson
Walter Roberson 2013-3-29
At the bottom of that page there is a header
Related Documents/Files:
below which there is a link for drawaxis.m . Click on that link to download the file. Put the file in a convenient location on your MATLAB path.
Anyone who wishes to execute your code will need a copy of the file. You could include it along with your code.
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Walter Roberson
Walter Roberson 2013-3-30
Are you getting an error message? I do not have the toolbox with blsprice() in it, so I cannot test your code.
Locks
Locks 2013-3-30
x =[0:0.01:20]
y1=blsprice(x,10,0.02,0.2,0.2)-blsprice(10,10,0.02,0.2,0.2)
y2=max(x-10,0)-blsprice(10,10,0.02,0.2,0.2)
plot(x,y1,'k',x,y2)
xlabel('Stock Price at Maturity ($)');
ylabel('Gain ($)');
axis([8.5 11.5 -0.5 1]);
set(gca,'xtick',9:0.5:11.5)
annotation(gcf,'doublearrow',[0.515 0.515],[0.2 0.36])
text(10.25,-0.2,'Time value')
set(gca,'Box','off')
this code is perfectly working so I guess it can't be blsprice ()
could you tell me what I excatly ned to change in my code and where I have to place the new elements?

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