n_1		=>	1
n_2		=>	2
n_3		=>	3
n_4		=>	4
n_5		=>	5
n_6		=>	6
n_7		=>	7
n_8		=>	8
n_9		=>	9
n_0		=>	0
deg		=>	deg
inv		=>	inv
br_l		=>	(
br_r		=>	)
log		=>	log
ln		=>	ln
abs		=>	abs
multiply	=>	*
divide		=>	&divide;
sin		=>	sin
cos		=>	cos
tan		=>	tan
plus 		=>	+
minus		=>	-
perx		=>	1/x
x2		=>	x&sup2;
pi		=>	Pi
decimal		=>	.
plusminus	=>	&plusmn;
equal		=>	=
reset  		=>	C
E_		=>	E