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2

You must set the option PrintPrecision to a higher value (The default is 6 digits). This can be done with the Option Inspector very easily. This can also be done programmatically : SetOptions[SelectedNotebook[], PrintPrecision -> 16] It works too with Style[]: Style[N[\[Pi]], PrintPrecision -> 10] --> 3.141592654 (instead of default 6 digits ...

3

Is SetAccuracy what you want? a = N[10/3, {∞, 3}] 3.33 b = 33 3.00 a + 1 4.33 b + 1 4.00 394.9856743 394.99 Please note Accuracy is a different concept from Precision.

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Use the $PrePrint global parameter:$PrePrint = If[MatchQ[#, _?NumericQ], NumberForm[#, {4, 2}], #] &; Note: if you dont want the way rationals will be represented after setting the global variable (e.g. $3.00/4.00$) then use this instead \$PrePrint = If[MatchQ[#, Except[_Rational,_?NumericQ]], NumberForm[#, {4, 2}], #] &; Update: if you ...

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