[Matrix library] Rectangular, symmetric, diagonal, etc [Array library] One, two and three dimensional arrays, at least [Feature] 
Types
E x p r e s s i o n s
E l e m e n t a c c e s s
E l e m e n t a r y f u n c t i o n s
A d v a n c e d f u n c t i o n s
E l e m e n t t y p e s
T y p e s