mat1	a
a 	matrix ma na 

ext15ca  a ma na
a	double

out	sequence a
***********************
mat2	a
a 	matrix ma na 

ext15cc  a ma na
a	int

out	sequence a
***********************
mat3	a
a 	matrix ma na 

ext15ca  a ma na
a	double

out	list a
***********************
mat4	a
a 	matrix ma na 
b 	matrix ma na 

ext15cb  a b  ma na
a	double
b	double 

out	sequence b
***********************
mat5	a
a 	matrix ma na 
b 	matrix ma na 

ext15cd  a b  ma na
a	int
b	int

out	sequence b
***********************
mat6	a
a 	matrix ma na 
b 	matrix ma na 

ext15cb  a b  ma na
a	double
b	double 

out	list b
***********************
mat7	a
a	list 	ex15fi-l

ext15ca	mat(a)  ma(a) na(a)
mat(a)	double 

out	sequence	mat(a)
***********************
mat8	a
a	list 	ex15fi-l

ext15cc	mat(a)  ma(a) na(a)
mat(a)	int

out	sequence	mat(a)
***********************
mat9	a
a	list 	ex15fi-l

ext15ca	mat(a)  ma(a) na(a)
mat(a)	double 

out	list	mat(a)
***********************
mat10	
a	matrix ma na 

ext15ce	a ma na err
a	cintf
ma	int 
na	int 

out	sequence a
***********************
mat11
a	matrix ma na 

ext15ce	a ma na err
a	cintf
ma	int 
na	int 

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