Data types.

Data handled by Erable have two representations: the user representation which you use most all the time and the internal representation (used internally).

List of data types:

True data	Example	User	Example	Internal	Example
Integer	5	real, hex, string	5	hex	#5
Float	5.02	real	5.02	long real	%% 5.02
Gauss integer	1+2i	symbolic	'1+2*i'	secondarie	:: #1 #2 ;
Complex	(1.1,2.3)	complex	(1.1,2.3)	long complex	C%% 1.1 2.3
Fractions	$\frac{2}{3}$	symbolic	'2/3'	symbolic	'#2/#3'
Irr. quadr.	$1+2\sqrt{5}$	symbolic	'1+2*V3'	program	<< #1 #2 #5 >>
Unknowns	a, x ...	variables	A X	list	variable
Symbolics	a+x2	symbolic	'A+X^2'	list	variable
Lists	{ 1 i }	list	{ 1 'i' }	list	{ #1 :: #0 #1 ; }
Array	[ 1 2 ]	array	[ [ 1 2 ] [ 3 4 ] ]	array	[ [ 1 2 ] [ 3 4 ] ]
Symb. array	{ 1 2 }	list	{ { 1 2 } { 3 4 }	list	{ { #1 #2 } { #3 #4 } }