log() : Natural Logarithm

Calculate the natural logarithm (base e) of a number.

On this page

Signature

log(value)

Parameter	Type	Required	Description
`value`	Number	Yes	The number (must be positive)

Type: Double

The natural logarithm of the value.

<p>ln({{model.value}}) = {{format(log(model.value), '0.000')}}</p>

Data:

doc.Params["model"] = new {
    value = 10
};

Output:

<p>ln(10) = 2.303</p>

<p>Years to double: {{format(log(2) / model.rate, '0.0')}}</p>

Data:

doc.Params["model"] = new {
    rate = 0.07
};

Output:

<p>Years to double: 9.9</p>