Metrohm viva 1.1 (ProLab) - Manual (Page 67)

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2 General program functions
viva 1.1 (for process analysis)
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Oper-
and1 Oper-
and2 Result Example Remark
Text Text Number "Metrohm" < "AG" --> 0 When making a comparison between two
texts, the ASCII value of the character
string is compared (see Chapter 2.3.4.10,
page 75). Attention: Uppercase and
lowercase letters have different values!
Time Time Number Time(1998;04;06) <
Time(1964;02;03) --> 0 (see Chapter 2.3.4.6.2, page 63)
Operands of a different type:
Number Text Number 1.2 < "Metrohm" --> 11.2 <
"1" --> 0 Before the relational operation, the Num-
ber is converted to Text, afterwards the
texts are compared according to ASCII
value (see Chapter 2.3.4.10, page 75).
Text Number Number "Metrohm" < 1.2 --> 0 The same rules apply here as for the previ-
ous operation.
Number Time Number 2.0 < Time(1999;10;07) -->
1 Before the comparison, the operand is con-
verted from Date/Time to a Number.
Time Number Number Time(1999;10;07) < 2.0 -->
0 The same rules apply here as for the previ-
ous operation.
Text Time Number "Metrohm" <
Time(1999;10;07) --> 0 Before the operation, the operand is con-
verted from Date/Time to Text (in this
example: "1999-10-07 00:00:00 UTC
+2"), afterwards the texts are compared
according to ASCII value (see Chapter
2.3.4.10, page 75).
Time Text Number Time(1999;10;7) <
"Metrohm" --> 1 The same rules apply here as for the previ-
ous operation.
2.3.4.4.5 Less than or equal to
Dialog window: Formula editor ▶ Operators/Functions
Syntax
Operand1 <= Operand2
The operands can be entered either directly or as variables and can be of
the Text, Number or Date/Time type. The result type is always a num-
ber (1 = true, 0 = false).
Examples
Oper-
and1 Oper-
and2 Result Example Remark
Operands of the same type: