Metrohm viva 1.0 (process analysis) - Manual (Page 60)

2.3 Formula editor
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viva 1.0 (for Process analysis)
Oper-
and1 Oper-
and2 Result Example Remark
Number Number Number 5 <> 4 --> 1
5 <> 5 --> 0
–
Text Text Number "Metrohm" <> "AG" --> 1 When making a comparison between two
texts, the ASCII value of the character
string is compared (see Chapter 2.3.4.10,
page 66). Attention: Uppercase and
lowercase letters have different values!
Time Time Number Time(1998;04;06) <>
Time(1964;02;03) --> 1 (see Chapter 2.3.4.6.2, page 54)
Operands of a different type:
Number Text Number 1.2 <> "1.2" --> 01.2 <>
"Metrohm" --> 1 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 66).
Text Number Number "Metrohm" <> 1.2 --> 1 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) <> 2.5 -->
1 The same rules apply here as for the previ-
ous operation.
Text Time Number "Metrohm" <>
Time(1999;10;07) --> 1 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 66).
Time Text Number Time(1999;10;7) <>
"Metrohm" --> 1 The same rules apply here as for the previ-
ous operation.
2.3.4.5 Arithmetical functions
2.3.4.5.1 Exponential function
Dialog window: Formula editor ▶ Operators/Functions
Syntax
y = Exp(number)
Calculates e ^ number. Other notation for y = e (number) , where e is the Euler
number (e = 2.71828…).
Parameters
Number
Exponent