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[2]]) Is there any way to do that? Thanks, Irving.