5 arithmetical functions, 1 exponential function, 2 natural logarithm – Metrohm tiamo 2.1 Manual User Manual

Page 73: Exponential function, Natural logarithm

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2 General program functions

tiamo 2.1

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59

2.4.4.5

Arithmetical functions

2.4.4.5.1

Exponential function

Dialog window: Formula editor

Operators/Functions

Syntax
y = Exp(number)

Calculates e ^ number. Other notation for y = e

(number)

, whereby e is the Euler

number (e = 2.71828…).

Parameters
Number

  Exponent

The parameter can be indicated either directly as a number or as a variable
of the type Number. If the parameter does not correspond to the expected
type, it will automatically be converted to this. If this is not possible, the
result of this operation is given as invalid.

Examples
Exp(1.5) = 4.48169

Exp('CV.AverageTemp') = Power of the exponent (common variable
CV.AverageTemp) for base e

2.4.4.5.2

Natural logarithm

Dialog window: Formula editor

Operators/Functions

Syntax
y = Ln(number)

Gives the logarithm of the entered number for base e. Alternative notation
for y = loge(number), whereby

e

is the Euler number (e = 2.71828…).

Parameters
Number

  > 0

The parameter can be indicated either directly as a number or as a variable
of the type Number. If the parameter does not correspond to the expected
type, it will automatically be converted to this. If this is not possible, the
result of this operation is given as invalid.

Examples
Ln(3) = 1.09861

Ln('CV.AverageTemp') = Natural logarithm of the value of the common
variable CV.AverageTemp for base e

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