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Topic: integral that includes symbols
Replies: 4   Last Post: Aug 6, 2013 1:50 PM

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 Young Ryu Posts: 140 Registered: 1/7/08
integral that includes symbols
Posted: Aug 6, 2013 7:05 AM

Hi

I have an equation: F=L*cos(theL). L is a constant. Integral of F over zero to (1/2)pi should give L. But I could not make that answer Please see below my code and help me how to fix this problem. I have much more complex equation but simplified my problem to this example.

syms L;
theL=[0+0.001:pi/1000:pi/2-0.001]
F=L*cos(theL);
trapz(theL,F)

ans: (21828504695225120901251714223243*L)/162259276829213363391578010288128 + (634496096455597832693*pi*L)/2305843009213693952000

Date Subject Author
8/6/13 Young Ryu
8/6/13 Torsten
8/6/13 Young Ryu
8/6/13 Torsten
8/6/13 Alan Weiss