Help computing definite integral

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James Robinson
James Robinson 2017-12-5
回答： Roger Stafford 2017-12-5
Here is my code
syms x
fun= (1+.5.*x.^3-x.^2).^(1/4)
Q=int(fun,0,3)
When I execute the code, it doesn't solve the integral numerically, it just shows the function with the integral and the bounds 0 to 3. Any help with this is appreciated. It seems as if it is only an issue with how the output is being formatted. I am using the 2017 version of Matlab I believe. Thanks in advance.

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Roger Stafford
Roger Stafford 2017-12-5
It is quite possible that Matlab is unable to solve that integral symbolically. I don't think I know its solution. If not, you will have to evaluate it numerically using the 'integral' function rather than 'int'.

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