how to write log base 2 in matlab coding

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Prabha Kumaresan
Prabha Kumaresan 2017-11-8
回答： Andrew Rockhill 2022-9-16
expression for log base 2 in matlab coding

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michio
michio 2017-11-8
Y = log2(X)

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Andrew Rockhill
Andrew Rockhill 2022-9-16
To find the log in any base, make use of the base-change formula:
log_b(x) = log_a(x)/log_a(b)
So you can create a function logb = @(b,x) log(x)/log(b);
Then Y = logb(2,x);
Or, more generally;
Y = logb(b,x);

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