# How to define an integral to not be evaluated

I'm trying to write the following script:

```
var('alpha beta x')
num = x**(alpha-1) * (1-x)**(beta-1)
denom = integral(x**(alpha-1) * (1-x)**(beta-1), x)
gammadist = num / denom
diff(gammadist, x)
```

So it is mich easier if the integral on `denom`

does not get evaluated. However, I cannot find a way to do that on Sage and Sage always tries to evaluate it (without success). Is there a way to tell Sage to keep it as an integral?

Thanks