Symbols are
a concise
way of giving
lengthy
instructions
related to
numbers and
logic.
Symbols are
a communication
tool. Symbols
are used to
eliminate the
need to write
long, plain
language
instructions to
describe
calculations
and other
processes.
For example, a
single symbol
stands for the
entire process
for addition.
The familiar
plus sign
eliminates the
need for a long
written
explanation of
what addition
means and how
to accomplish
it.
The same
symbols are
used worldwide
. . .
The symbols
used in
mathematics are
universal.
The same math
symbols are
used throughout
the civilized
world. In most
cases each
symbol gives
the same clear,
precise meaning
to every
reader,
regardless of
the language
they speak.
The most
valuable,
most
frequently used
Symbols in
mathematics . .
.
The most
important, most
frequently used
Relation
symbols are
listed
below.
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Similarity
Sign

If two
geometric
objects have
exactly
the same
shape
(although not
necessarily the
same size),
they are
similar.
(If the two
objects have
exactly the
same shape,
and
exactly the
same size, they
are congruent.
Click here to
view the
Congruent
Symbol.)
Example
1: ,
Figures A
and B have
the same
shape,
exactly.
Figure
"A"
is similar
to
Figure
"B"
similar
to
Figure
A
Figure
B
Figure
A
Figure
B
Figure
"A"
Figure
"B"
Example
2: ,
Figures C
and D have
the same
shape,
exactly.
Figure
"C"
is similar
to
Figure
"D"
similar
to
Figure
C
Figure
D
Figure
C
Figure
D
Figure
"C"
Figure
"D"
Example
3: ,
Triange
"ABC"
and
Triangle
"DEF"
have the
same
shape,
exactly.
Triangle
"ABC"
is similar
to
Triangle
"DEF"
similar
to
A
B
C
D
E
F
A
B
C
D
E
F
Triangle
"ABC"
Triangle
"DEF"