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Re: Puzzled by IntegerPart

• To: mathgroup at smc.vnet.net
• Subject: [mg114710] Re: Puzzled by IntegerPart
• From: Albert Retey <awnl at gmx-topmail.de>
• Date: Mon, 13 Dec 2010 06:34:45 -0500 (EST)
• References: <ie28rd$mja$1@smc.vnet.net>

Hi,

> Round and Rational have solved the problem. But I am curious, why do
> the phantom decimals not show with N?
> 
> N[100*1.15, 20]
> 
> 115.

N has no influence on the formatting but is used to convert to floating
point numbers. What you want is either of these:

FullForm[100*1.15]

InputForm[100*1.15]


hth,

albert

PS: Does anyone understand why

NumberForm[100*1.15, 20]

will be shown as 115. ? Is this really the intended behavior?