Re: Low precision exponentiation
- To: mathgroup at smc.vnet.net
- Subject: [mg129841] Re: Low precision exponentiation
- From: Sseziwa Mukasa <mukasa at gmail.com>
- Date: Mon, 18 Feb 2013 06:01:03 -0500 (EST)
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Mathematica interprets numbers entered as decimals as machine precision. The easiest but not only way to get a high precision answer to your problem is to enter a rational: N[(5/2)^125,30]. Regards, Sseziwa On Sunday, February 17, 2013, Blaise F Egan wrote: > I am trying to evaluate 2.5^125 to high precision. > > R gives 5.527147875260445183346e+49 as the answer but Mathematica with > N[2.5^125,30] gives 5.52715*10^49 and says that is to machine precision. > > I am inexperienced at Mathematica. Am I doing something silly? > > Blaise > >
- References:
- Low precision exponentiation
- From: Blaise F Egan <blaise@blaisefegan.me.uk>
- Low precision exponentiation