ext16ca	a
a 	bmatrix ma na 

ext16ca  a ma na
a	int 

out	sequence a
***********************
ext16cb	a
a 	bmatrix ma na 

ext16ca  a ma na
a	int 

out	list a
***********************
ext16cc	a
a 	bmatrix ma na 
b 	bmatrix ma na 

ext16cb  a b  ma na
a	int
b	int

out	sequence b
***********************
ext16cd	a
a 	bmatrix ma na 
b 	bmatrix ma na 

ext16cb  a b  ma na
a	int
b	int

out	list b
***********************
ext16ce	a
a	list 	ex16fi-l

ext16ca	mat(a)  ma(a) na(a)
mat(a)	int

out	sequence	mat(a)
***********************
ext16cf	a
a	list 	ex16fi-l

ext16ca	mat(a)  ma(a) na(a)
mat(a)	int 

out	list	mat(a)
***********************
ext16cg
a	bmatrix ma na 

ext16ce	a ma na err
a	cboolf
ma	int 
na	int 

out	sequence a
***********************
ext16ch
a	bmatrix ma na 

ext16ce	a ma na err
a	cboolf
ma	int 
na	int 

out	list a
***********************