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Re: Log function

  • To: mathgroup at
  • Subject: [mg57339] Re: [mg57297] Log function
  • From: "David Park" <djmp at>
  • Date: Wed, 25 May 2005 06:02:43 -0400 (EDT)
  • Sender: owner-wri-mathgroup at

Mathematica calculates exactly and therefore does not simplify unless there
is an exact simplification.

For an approximate number answer use the N function.

In[1]:= Log[2]
Out[1]= Log[2]

In[2]:= N[Log[2]]
Out[2]= 0.693147

David Park
djmp at

From: Bill Ginsberg [mailto:eqmc2 at]
To: mathgroup at

I have Mathematica 5.0.1.  When I attempt to get the Log of a number "a"
by entering Log[a], it does not return the value but echoes back:
Log[a].  How is this fixed?

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