calc    str
str     string  n
a	scalar

fcalc   str     a	n
str     char
a       integer
n	integer

out	sequence	a
***********************
som     a       b
a       row     n
b       row     n
c       column  n

csom    n	a	b	c
a       real
n       integer
b       real
c       real

out     sequence        c
***********************