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Computes the base 10 logarithm of a specified input value.

If x is 0, log is negative infinity. If x is not complex and is less than 0, log is not a number (NaN).

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x

An input to this operation.

This input supports scalar numbers, arrays or clusters of numbers, and arrays of clusters of numbers.

Data Type Changes on FPGA

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log

Result of the operation.

This output assumes the same numeric representation as x. When x is of the form x = a + bi, that is, when x is complex, the following equation defines log:
log 10 ( x ) = ln ( x ) ln ( 10 ) = ( 1 ln ( 10 ) ) ( ln ( a 2 + b 2 ) + i arctan 2 ( b , a ) )