forked from BilalY/Rasagar
44 lines
2.2 KiB
Markdown
44 lines
2.2 KiB
Markdown
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# Log
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Menu Path : **Operator > Math > Log**
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The **Log** Operator outputs the logarithm of a number. This determines how many times you need to multiply a base number to get another final number. This Operator is useful to solve mathematical problems that involve compound interest. It is the reverse of the [**Exp**](Operator-Exp.md) Operator.
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The Log Operator supports the following bases:
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- Log,
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- Log<sub>2</sub>
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- Log<sub>10</sub>
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Log, also known as a natural logarithm, outputs the logarithm of a number to the base of e, which is a mathematical constant approximately equal to 2.718281828459.
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Log<sub>2</sub> outputs the logarithm of a number to the base of **2** and it is the reverse of raising a number to a certain power. For example, an input of 16 outputs 4. This is because the base 2 multiplied 4 times equals 16.
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Log<sub>10</sub> outputs the logarithm of a number to the base of **10**. For example, an input of 100 outputs 2. This is because multiplying the base 10 twice by itself equals 100.
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## Operator settings
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| **Property** | **Type** | **Description** |
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| ------------ | -------- | ------------------------------------------------------------ |
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| **Base** | Enum | Specifies the base this Operator uses. The options are:<br/>• **Base 2**: Sets the Operator to use a base of 2.<br/>• **Base 10**: Sets the Operator to use a base of 10.<br/>• **Base E**: Sets the Operator to use a base of the mathematical constant *e*. |
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## Operator properties
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| **Input** | **Type** | **Description** |
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| --------- | --------------------------------------- | ----------------------------------------------------- |
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| **X** | [Configurable](#operator-configuration) | The number this Operator calculates the logarithm of. |
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## Operator configuration
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To view the Operator's configuration, click the cog icon in the Operator's header. Use the drop-down to select the type for the X port. For the list of types these properties support, see [Available types](#available-types).
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### Available types
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You can use the following types for your input ports:
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- **Position**
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- **float**
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- **Vector**
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- **Vector2**
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- **Vector3**
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