Constant Command

The Constant command loads one of the following four predefined constants or a selected conversion constant into the top register of the calculator:

Constant button drop-down menu expanded, Pi option highlighted.

Pi	p
Epsi0	The permittivity of free space, e₀ = 8.85418782 x 10^-12 C²/Nm²
Mu0	The permeability of free space, m₀ = 4p x 10^-7 Wb/Am
c	The speed of light in vacuum, c = 2.99792458 x 10⁸ m/s
conversion constant	Displays the Enter Units Conversion Factor dialog box. This lists a range of Quantities (such as frequency, resistance, and others) along with a list of Units (Hz to Thz, and rps) to convert From and To. The ratio of the Units From to the Units to is displayed for the selected values as Conversion Factor.