<s>
In	O
mathematics	O
,	O
the	O
signal	B-Algorithm
magnitude	I-Algorithm
area	I-Algorithm
(	O
abbreviated	O
SMA	O
or	O
sma	O
)	O
is	O
a	O
statistical	O
measure	O
of	O
the	O
magnitude	O
of	O
a	O
varying	O
quantity	O
.	O
</s>
