Precision

*To*: mathgroup at smc.vnet.net*Subject*: [mg129335] Precision*From*: Rob Ryan <tio540s1 at gmail.com>*Date*: Sat, 5 Jan 2013 02:19:25 -0500 (EST)*Delivered-to*: l-mathgroup@mail-archive0.wolfram.com*Delivered-to*: l-mathgroup@wolfram.com*Delivered-to*: mathgroup-newout@smc.vnet.net*Delivered-to*: mathgroup-newsend@smc.vnet.net

My frustration is growing. I simply want to add (for example): 103971.66+52282.64+2998.27. These are dollars and cents and I'd like to keep the cents. But when I input that line, I get 159923. When I input: N[(103971.66+52282.64+2998.27),20] I STILL get 159923. What do I do to get 159952.57? I've used "SetPrecision", etc. with still no result. I note that when I type 103971.66 and hit shift-return, the output is 103972. If I then type "InputForm[%]" I get 103971.66. There simply has to be an easy way to add these numbers - any calculator watch can do it!

**Follow-Ups**:**Re: Precision***From:*Andrzej Kozlowski <akozlowski@gmail.com>

**Re: Precision***From:*Tomas Garza <tgarza10@msn.com>

**Re: Precision***From:*Bob Hanlon <hanlonr357@gmail.com>