Re: Puzzled by IntegerPart
- To: mathgroup at smc.vnet.net
- Subject: [mg114683] Re: Puzzled by IntegerPart
- From: Bob Hanlon <hanlonr at cox.net>
- Date: Mon, 13 Dec 2010 03:50:38 -0500 (EST)
N can reduce precision but it cannot increase precision. 100*1.15 // InputForm 114.99999999999999 % // Precision MachinePrecision N[%%, 20] // InputForm 114.99999999999999 % // Precision MachinePrecision SetPrecision[100*1.15, 30] 114.999999999999985789145284798 Precision[%] 30. N[%%, 20] 114.99999999999998579 Precision[%] 20. Bob Hanlon ---- Themis Matsoukas <tmatsoukas at me.com> wrote: ============= 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. Themis