subf(3)

NAME
subf - symbolic subtraction

CALLING SEQUENCE
["c"]=subf("a","b")

PARAMETERS

"a","b","c"
    : strings

DESCRIPTION
returns the character string c="a-b" Trivial simplifications such as subf("0","a") or subf("1","2") are performed.

SEE ALSO
mulf, ldivf, rdivf, eval, evstr.