Skip to content
RelationalAI Docs

log2

relationalai.semantics.std.math
log2(value: NumberValue) -> Expression

Compute the base-2 logarithm.

Parameters

  • value

    (NumberValue) - The positive input value. At run time a negative input has no value and 0 gives -inf.

Returns

  • Expression - An Expression computing log_2(value). Returns Float.

Raises

  • ValueError - If x can be computed statically and is non-positive.

Examples

Compute base-2 logarithm:

select(math.log2(1024))
select(math.log2(Data.size))