func math.Log2

3 uses

	math (current package)
		log10.go#L22: func Log2(x float64) float64 {

	math/big
		natconv.go#L276: 	i := int(float64(x.bitLen())/math.Log2(float64(base))) + 1 // off by 1 at most

	github.com/aws/aws-sdk-go-v2/aws/retry
		jitter_backoff.go#L26: 		maxBackoffAttempts: math.Log2(