Log2

Syntax:

    returned_word_variable = Log2 ( word_value )

Command Availability:

Available on all microcontrollers.

Explanation:

The Log2 command returns the base-2 logarithm, to 2 decimal places.

The values returned are fixed-point numbers, with two decimal places assumed on the right — or, if you prefer, think of the values as being scaled up by 100.

Example:

    dim log_value as word
    log_value = log2 ( 10 )   ' <<< the Log2 instruction -- returns 3321, equating to 3.321

Key line: log2 ( 10 ) — returns 3321, which represents 3.321 once the implied two decimal places are accounted for. Supported in <MATHS.H>

See Also:

  • Logarithms — overview of the log family of functions
  • Loge — natural (base-e) logarithm
  • Log10 — base-10 logarithm
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