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`Delta x = x_2 - x_1 `

Enter a value for all fields

The **Delta x** calculator computes the difference between two lengths or distances (x_{2}) and (x_{1}).

**INSTRUCTIONS**: Choose units and enter the following:

- (
**x**) The initial reference length_{1} - (
**x**) The second reference length_{2}

**Delta x (Δx):** The calculator returns the difference in meters. However, this can be automatically converted to compatible units via the pull-down menu.

The formula for the change in distance is:

Δx= x_{2} - x_{1}

where:

- Δx is the difference in time between the two reference lengths.
- x
_{1}is length reference point one. - x
_{2}is length reference point two.

- Light and Matter(Dr. Benjamin Crowell) Chapter 2.2 Describing Distance and Time