How to express the results in normal cdf instead of erf()
- To: mathgroup at smc.vnet.net
- Subject: [mg97106] How to express the results in normal cdf instead of erf()
- From: Irving Zhu <irving.zhu at gmail.com>
- Date: Thu, 5 Mar 2009 04:56:27 -0500 (EST)
Hi All, I am working on some integrals involving the Normal Distribution, and would like the end results to be expressed in normal density as opposed to the Erf function. For example, the default result of the following: Integrate[PDF[NormalDistribution[0, 1], x] Exp[x], x] will result in an expression in Erf. I'd like it to be in terms of CDF[NormalDistribution] instead. Of course the two functions are related: CDF[NormalDistribution[0,1],x] ==1/2*(1+Erf[[x/Sqrt]) Is there any way to do that? Thanks, Irving.