# Logarithmic Axis The logarithmic scale is used to chart numerical data. It can be placed on either the x or y-axis. As the name suggests, logarithmic interpolation is used to determine where a value lies on the axis. ## Configuration Options !!!include(axes/cartesian/_common.md)!!! !!!include(axes/_common.md)!!! ## Tick Configuration ### Logarithmic Axis specific options Namespace: `options.scales[scaleId]` | Name | Type | Default | Description | ---- | ---- | ------- | ----------- | `format` | `object` | | The [`Intl.NumberFormat`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/NumberFormat) options used by the default label formatter !!!include(axes/cartesian/_common_ticks.md)!!! !!!include(axes/_common_ticks.md)!!! ## Internal data format Internally, the logarithmic scale uses numeric data.