Hello everyone:
I have a programe , and I have setted: 'set decim to 2'.
inside the program :

local v1,v2,v3,v4,......,v19,v20
store 0 to v1,v2,v3,......v19,v20
......
v20=v1+v2+v3+v4+......+v19

why the varible 'v20' often more 0.01 or less 0.01
I have used round() ,but it failure also.
Could you give me some advice?
Thank you.