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Math Forum » Discussions » Software » comp.soft-sys.math.mathematica

Topic: Low precision exponentiation
Replies: 5   Last Post: Feb 18, 2013 6:00 AM

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svkeeley@aol.com

Posts: 9
Registered: 12/27/12
Re: Low precision exponentiation
Posted: Feb 18, 2013 6:00 AM
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Here are two possibilities to get the precision you want:

1. Use exact input:

In: N[(5/2)^125, 30]

Out: 5.52714787526044456024726519219*10^49

2. Use a more precise input:

In: 2.500000000000000000000000000000^125]

Out: 5.527147875260444560247265192*10^49

There's probably a more elegant way to do this, but being pretty new at Mathematica myself, those were the only things I could think of.

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