compute limit

*To*: mathgroup at smc.vnet.net*Subject*: [mg70533] compute limit*From*: Frank Hechtner <frank.hechtner at rub.de>*Date*: Thu, 19 Oct 2006 03:21:42 -0400 (EDT)

Hi, i?m in trouble with the calculation of limits. my expression is the following ((1 + r)^t*(1 - s) + s)^(1/t) - 1, t -> ? as you see, the limit is r when x approaches ?. Unfortunately when using limit the output is Limit[((1 + r)^t*(1 - s) + s)^(1/t) - 1, t -> ?]. I dont see whats going wrong. Does limit only compute numerical expression? Thanks for your help Frank