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.

Examples

subf('0','a')
subf('2','1')
subf('a','0')
 

See Also

mulf  ldivf  rdivf  eval  evstr