Functions - arithmetic, Exponential function, Natural logarithm – Metrohm tiamo 1.1 Manual User Manual
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Formula editor
45
Operand1 Operand2 Result
Example
Remarks
the previous operation.
Text Time Number
"Metrohm" <> Time(1999;10;07)
--> 1
Before the operation an operand
of type
Date/Time
is converted to
Text
(i.e.:
"1999-10-07 00:00:00
UTC+2"
) and then the texts are
compared according to the ASCII
table.
Time Text Number
Time(1999;10;7) <> "Metrohm" --
> 1
The same rules apply here as for
the previous operation.
Functions - Arithmetic
Exponential function
Syntax
y = exp(number)
Calculates e ^
Number
. Another way of writing y = e
(number)
, where e is the
exponential (e = 2.71828...).
Parameter
Number
Exponent
The parameter can either be entered directly as a number or as a Variable
of the type
Number
. If the parameter does not correspond to the selected
type then it will be automatically converted to it (see Type conversion
"TextToNumber"). If this is not possible then "
invalid
" will be returned as the
result of this operation.
Examples
Exp(1.5) = 4.48169
Exp('CV.MeanTemp')
= potential of the exponent (Common variable) based
on e
Natural logarithm
Syntax
y = ln(number)
Returns the logarithm of the entered number based on e. Another way of
writing y = log
e
(Number), where e is the exponential (e = 2.71828...).
Parameter
Number
>0
The parameter can either be entered directly as a number or as a Variable
of the type
Number
. If the parameter does not correspond to the selected
type then it will be automatically converted to it (see Type conversion
"TextToNumber"). If this is not possible then "
invalid
" will be returned as the
result of this operation.