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[tex]\displaystyle\int^3_0 \int^1_{\sqrt{\frac{x}{3}}} e^y^3,dydx[/tex]

however my problem is integrating:

[tex]\int^1_{\sqrt{\frac{x}{3}}} e^y^3 dy[/tex]

I have looked on the forum and everyone is mentioning erf(x) which i dont understand yet. Do i need this for this definite integral? If so where can i learn about it and how to use it?