Scalar. Returns the logarithm of a given value to the base 2.
log2 ( value )
| value | An expression that evaluates to a float greater than or equal to 0. |
Returns the logarithm of a given value to the base 2. The function expects a float for its argument, however, an integer will be promoted to a float when the function executes. The function returns a float.
log2 (8.0) returns 3.0.