yes On Nov 24, 12:28 pm, Joop Kiefte <iko...@gmail.com> wrote: > 2010/11/24 cej38 <junkerme...@gmail.com>: > > > > > > > 5. ease of changing function calls to allow for extra stuff/ > > functionality without breaking other stuff. An example would be best > > here. Suppose I had defined some function that worked for a specific > > purpose: > > > (defn setzero [value] > > "If value is less than 1.0E-8 setzero returns zero.." > > (if (tolerance? value 1.0E-8) 0 value)) > > > and later I decided that I would really like to use that same function > > again, but that 1.0E-8 won't work in this new case. I can change > > setzero so that it will work with all of my old code (without change > > to the old code) but I can make it work new code as well. > > > (defn setzero > > "If value is less than parameter setzero returns zero. If no > > parameter is specified, the default value of 1.0E-8 is used." > > ([value] > > (setzero value 1.0E-8)) > > ([value parameter] > > (if (tolerance? value 1.0E-8) 0 parameter))) > > You mean this I suppose: > > (defn setzero > "If value is less than parameter setzero returns zero. If no > parameter is specified, the default value of 1.0E-8 is used." > ([value] > (setzero value 1.0E-8)) > ([value parameter] > (if (tolerance? value parameter) 0 value)))
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