What is Heisenberg Uncertainty Formula?

[ZedCar]

What is the Heisenberg Uncertainty Principle Formula?

Here:
http://www.people.vcu.edu/~rgowdy/mod/122/xmp4.htm

It is quoted as Δx(Δmv) ~ h/2∏
which is ΔxΔp ~ (h-bar)

Here:
https://en.wikipedia.org/wiki/Uncertainty_principle

It is quoted as ΔxΔp ~ (h-bar)/2

 

[jtbell]

The "correct" version is

$$\Delta x \Delta p \ge \frac {\hbar} {2}$$

It assumes that the "deltas" are defined as the usual statistical standard deviation.

People often use simplified versions that differ by small numerical factors, when they're not concerned with being rigorous, but simply want an order-of-magnitude type statement.

 

[ZedCar]

Thank you for that.

 

[Studiot]

Please note the difference between h (Planck's constant) and hbar = h/2∏ (reduced Planck's constant).

Google will find plenty.