right symbolic division
[r] = rdivf(d, c)
character strings.
r=rdivf("d", "c") returns the string r which is "c/d". Trivial simplifications such as "c/1" = "c" are performed.
r=rdivf("d", "c")
r
"c/d"
"c/1" = "c"
rdivf('c','d') rdivf('1','2') rdivf('0','a') rdivf('a','0') //Caution...