maths and science symbols and meaning free

+	plus
-	minus
±	plus or minus
x	multiplied by
/	over; divided by
÷	divided
=	equals
≈	approximately, similar
≡	equivalent to; identical
≠	not equal to
>	greater than
<	less than
≥	greater than or equal to
≤	less than or equal to
⊁	not greater than
⊀	not less than
≫	much greater than
≪	much less than
⊥	perpendicular to
∣∣	parallel to
≢	not equivalent to, not identical to
≄≉	not similar to
²	squared
³	cubed
4	to the fourth;  to the power four
n	to the n; to the nth; to the power n
√	root; square root
∛	cube root
∜	fourth root
!	factorial
%	percent
∞	infinity
∝	varies as; proportional to
˙	dot
¨	double dot
:	is to, ratio of
f(x) fx	f; function
f'(x)	f dash; derivative
f''x	f double-dash; second derivative
f'''(x)	f triple-dash; f treble-dash; third derivative
f(4)	f four; fourth derivative
∂	partial derivative, delta
∫	integral
∑	sum
w.r.t.	with respect to
log	log
log₂x	log to the base 2 of x
∴	therefore
∵	because
→	gives, leads to, approaches
/	per
∈	belongs to; a member of;  an element of
∉	does not belong to; is not a member of; is not an element of
⊂	contained in;  a proper subset of
⊆	contained in; subset
⋂	intersection
⋃	union
∀	for all
cos x	cos x; cosine x
sin x	sine x
tan x	tangent x
cosec x	cosec x
sinh x	shine x
cosh x	cosh x
tanh x	than x
|x|	mod x; modulus x
℃	degrees Centigrade
℉	degrees Fahrenheit
°K	degrees Kelvin
0°K, –273.15 °C	absolute zero
mm	millimetre
cm	centimetre
cc, cm³	cubic centimetre, centimetre cubed
m	metre
km	kilometre
mg	milligram
g	gram
kg	kilogram
AC	A.C.
DC	D.C.