float llLog10(float arg)

Returns the logarithm in base ten of the argument.

The float value whose logarithm in base 10 is to be calculated.

Returns a float with the logarithm in base 10 of the argument.

• In order to make sense, the argument must be greater than 0.0; a value of 0.0 or less yields 0.0.
• The function returns Infinity if the input is Infinity, and 0.0 if the input is -Infinity or NaN.
• To calculate the natural logarithm, llLog can be used.
  • To calculate the logarithm in any other base, there is a recipe in the Notes section of llLog.
• There is no built-in inverse of this function. To raise 10 to a power, you can use llPow(10, power). But if you want to raise 10 to an integer constant, better use scientific notation, for example 1e32 means 10 to the 32nd power (10³²). See float for a description of scientific notation.

float f;
f = llLog10(10); // sets f to 1
f = llLog10(1);   // sets f to 0
f = llLog10(2);   // sets f to 0.301030 approx.
f = llLog10(0.5); // sets f to -0.301030 approx.
f = llLog10(-1);  // sets f to 0

• llLog to calculate the natural logarithm.
• llPow to raise a number to a power (also called antilogarithm).
• float type and associated caveats and limitations.