int function does not return a single number

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Thiago Oliveira
Thiago Oliveira 2011-8-9
Hello guys, I'm trying to use the int function to integrate the given function below:
syms T
R = 8.314e-5
CpS=(R*(1.702+(9.081e-3)*T+(-2.164e-6)*T^2))/T;
intCpS=int(CpS,298,500);
But the Matlab returns this result:
intCpS =
527894439476530787915169392877511447/1361129467683753853853498429727072845824+326286654811817103/2305843009213693952000*log(2)-326286654811817103/2305843009213693952000*log(149)+326286654811817103/2305843009213693952000*log(3)+978859964435451309/2305843009213693952000*log(5)
Anyone knows how to get the single number, resulting from this numeric expression?
Best Regards
Thiago Oliveira

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采纳的回答

Oleg Komarov
Oleg Komarov 2011-8-9
Add at the end:
double(intCpS)

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