func funcLog2(vals []Value, args Expressions, enh *EvalNodeHelper) Vector {
	return simpleFunc(vals, enh, math.Log2)
}
func funcLog2(vals []Value, args Expressions, enh *EvalNodeHelper) Vector {
	return simpleFunc(vals, enh, math.Log2)
}
func funcLog2 ( vals [ ] Value , args Expressions , enh * EvalNodeHelper ) Vector { return simpleFunc ( vals , enh , math . Log2 ) }
// === log2(Vector ValueTypeVector) Vector ===
=== log2 ( Vector ValueTypeVector ) Vector ===