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error using log too many input arguments

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Janrex Pensader
Janrex Pensader 2018-3-11
回答： David Goodmanson 2018-3-13
I'm having a small issue using log. I want to change the base of the log using the log(b, x) format but It shows the error to many input arguments here is my code: Xans1 = log(3, sol) -4;

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回答（2 个）

Walter Roberson
Walter Roberson 2018-3-11
You are looking at the documentation for the symbolic log(). The numeric log() does not accept two parameters.
David Goodmanson
David Goodmanson 2018-3-13
Hi Janrex,
Since
log_base_b(x) = log(x)/log(b)
you could write your own function for that, just don't call it 'log'.

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