topic Cats function giving different results in SAS Programming

Cats function giving different results

rsunkara — Mon, 08 Sep 2014 10:54:35 GMT

I have no idea how this happen. Can anyone explain this?

x = cats(88.2 - 102.8) gives me -14.5999999999

where as y = cats(88.1 - 102.7) gives me -14.6

Data test;

x = cats(88.2 - 102.8);

y = cats(88.1 - 102.7);

put x = y = ;

run;

Re: Cats function giving different results

jakarman — Mon, 08 Sep 2014 10:58:08 GMT

http://support.sas.com/techsup/technote/ts654.pdf welcome in the digital age, please try the understand bytes and bits

Re: Cats function giving different results

data_null__ — Mon, 08 Sep 2014 11:12:40 GMT

We might ask why are you doing that? Also look up CATS function regarding how it converts numeric to character.

data _null_; 
   length x y 8; 
   x = 88.2 - 102.8; 
   y = 88.1 - 102.7; 
   d = x - y;
   put 'NOTE: ' x best32. +3 x hex16. +3 x;
   put 'NOTE: ' y best32. +3 y hex16. +3 y;
   put 'NOTE: ' d best32. +3 d hex16. +3 d;
   run; 

NOTE:                -14.5999999999999   C02D333333333330   -14.6
NOTE:                            -14.6   C02D333333333338   -14.6
NOTE:              1.4210854715202E-14   3D10000000000000   1.421085E-14