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Natural Logarithm (G Dataflow)

Version:
    Last Modified: December 12, 2016

    Computes the base e natural logarithm of a specified input value.

    If x is 0, ln is - . If x is not complex and is less than 0, ln is not a number (NaN).

    For very small values of x, Natural Logarithm (Arg +1) is more accurate than adding 1 to x then using this node.

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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.

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    ln

    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 the natural logarithm ln:
    ln ( x ) = ln ( | x | ) + i arg ( x )
    where arg( x) is the phase of x over the interval π < arg ( x ) π . In other words, the output uses the following equation:
    ln ( x ) = ln ( a 2 + b 2 ) + i arctan 2 ( b , a )

    Where This Node Can Run:

    Desktop OS: Windows

    FPGA: DAQExpress does not support FPGA devices


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