Metrohm tiamo 2.3 (process analysis) - Manual (Page 78)

2.4 Formula editor ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
62 ￭￭￭￭￭￭￭￭ tiamo 2.3 (for Process Analysis)
The operands can be entered either directly or as a variable and can be of
the type Text, Number or Date/Time. The result type is always a num-
ber (1 = true, 0 = false). The following cases are possible:
Operand1 Operand2 Result
1 1 1
0 1 1
1 0 1
0 0 0
Examples
Operand1 Operand2 Result Example Remark
Operands of the same type:
Number Number Number 5 OR 4 --> 1
4 OR 0 --> 1
Numbers greater than 1 are automati-
cally interpreted as 1 (true)
Text Text Number "Metrohm" OR "AG" --> 1
"" OR "Metrohm" --> 1
"" OR "" --> 0
An empty character string ("") is inter-
preted as 0 (false), everything else as 1
(true). The first operation therefore cor-
responds to 1 OR 1 --> 1
Time Time Number Time(1999;10;07) OR
Time(1964;02;03) --> 1 Time(): see Time(Date)
Operand of different type: The operand which does not correspond to the result type is converted to the relevant
result type before the operation.
Number Text Number 1.2 OR "1.2" --> 1
0 OR "" --> 1
Before the operation, the operand of
the type Number is converted to the
type Text, as a conversion from Text to
Number is not advisable. During the
second operation, the 0 is therefore
converted to "0", which corresponds to
the logical value 1 (true), as every char-
acter string that is not empty is interpre-
ted as 1.
Text Number Number "Metrohm" OR 1.2 --> 1 The same rules apply here as for the pre-
vious operation.
Number Time Number 2.0 OR Time(1999;10;7) --> 1
0 OR Time(1964;02;03) --> 1
Before the operation, the operand of
the type Date/Time is converted to
Number and all data from December
30, 1899 are interpreted as 1 (true).
Time Number Number Time(1999;10;7) OR 2.5 --> 1 The same rules apply here as for the pre-
vious operation.