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The column headings from left to right are parameter, units and free space value. The table information is as follows:

Parameter, electrical permittivity summation. Units, farad per meter. Free space value, summation sub 0 equals 8.854 multiplied by 10 to the negative 12 power is equivalent to start fraction 1 over 36 pi end fraction multiply 10 to the negative 9.

Parameter, magnetic permeability mu. Units, henry per meter. Free space value, mu sub 0 equals 4 pi multiply 10 to the negative 7 power.

Parameter, conductivity sigma. Units, Siemens per meter. Free space value, 0.