4 relational operators, 1 equal to, Equal to – Metrohm tiamo 2.1 (ProcessLab) User Manual
Page 68: Equal to (=)
2.4 Formula editor
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tiamo 2.1 (ProcessLab)
Operand1
Operand2
Result
Example
Remark
Number
Number
Number
5 OR 4 --> 1
4 OR 0 --> 1
Numbers greater than 1 are automatically
interpreted as 1 (true)
Text
Text
Number
"Metrohm" OR "AG" --> 1
"" OR "Metrohm" --> 1
"" OR "" --> 0
An empty character string ("") is interpre-
ted as 0 (false), everything else as 1 (true).
The first operation therefore corresponds
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 sec-
ond operation, the 0 is therefore conver-
ted to "0", which corresponds to the
logical value 1 (true), as every character
string that is not empty is interpreted 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 Num-
ber 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.
Text
Time
Number
"Metrohm" OR
Time(1999;10;7) --> 1
Before execution of the operation, the
operand of the type Date/Time is con-
verted to the type Text and every char-
acter string that is not empty is interpre-
ted as 1 (true).
Time
Text
Number
Time(1999;10;7) OR
"Metrohm" --> 1
The same rules apply here as for the pre-
vious operation.
2.4.4.4
Relational operators
2.4.4.4.1
Equal to
Dialog window: Formula editor
▶ Operators/Functions
Syntax
Operand1 = Operand2