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log

Natural logarithm of entries of symbolic matrix

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Syntax

Y = log(X)

Description

Y = log(X) returns the natural logarithm of X.

example

Examples

Compute Natural Logarithm

Compute the natural logarithm of each entry of this symbolic matrix:

syms x
M = x*hilb(2);
log(M)
ans =
[   log(x), log(x/2)]
[ log(x/2), log(x/3)]

Differentiate Symbolic Expression

Differentiate this symbolic expression:

syms x
diff(log(x^3), x)
ans =
3/x

Input Arguments

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Input, specified as a number, vector, matrix, or array, or a symbolic number, scalar variable, matrix variable, array, function, matrix function, or expression.

Version History

Introduced before R2006a

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See Also

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