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Spogo9's avatar
Spogo9
Copper Contributor
Oct 06, 2022
Solved

[Solved] Functions with trunc() not returning true values

For example, If cell A1 = 1.0005 then =if(A1-trunc(A1,3)=0.0005,1,0) returns 0.  additionally if I input cell A2=0.0005 and  Cell A3= A1-trunc(A1,3) then =A2=A3 returns FALSE.    Why does ex...
  • HansVogelaar's avatar
    Oct 06, 2022

    Spogo9 

    If you change the formula to =A2-A3, you will see that the result is not exactly 0:

    This is caused by tiny rounding errors. To avoid the problem, change the formula in A3 to

    =ROUND(A1-TRUNC(A1,3),4)

    (We round to 4 decimal places since your numbers have 4 significant decimal places)

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