# Analytic Formula

1. Apr 24, 2010

### patm95

1. The problem statement, all variables and given/known data

Derive an analytic forumula for a CDF

2. Relevant equations

3. The attempt at a solution

All I really want to know is what an analytic formula is? I know that the CDF is basically an integral of the PDF. I have looked all over the internet and can not find anything of the definition of an analytic formula.

Thanks!

2. Apr 24, 2010

### LCKurtz

Unless they have a specific CDF F(x) in mind, perhaps they just mean

$$F(x) = \int_{-\infty}^x f(t)\, dt \hbox{ so } F'(x) = f(x)$$

Edit Corrected typo.

Last edited: Apr 24, 2010
3. Apr 24, 2010

### patm95

Thanks. That's what I kinda figured, but I wanted to make sure that is what they ment.

Thanks again!

4. Apr 28, 2010

### g1990

Hi can someone help me please? I am trying to do the following problem:
Prove that if f(z) is analytic, f*(z*) is also analytic. The stars represent conjugates. Thanks!