[Example] The centrality of the velocity of light c in special
relativity is evidenced by the energy E of a mass m
moving with momentum p:
E = (m2c4+
c2p2)1/2 .
or slightly better:
E = ( m 2
c 4
+
c 2
p 2
)
1/2
.
The resistance R can be written in terms of the
current I flowing under a voltage V applied
V
across the resistor: R = ---.
I
INSTEAD:
The resistance R can be written in terms of
the current I flowing under a voltage V applied
across the resistor: R = V/I.
Note the equation is part of the sentence and must be punctuated.