Exp (Image Analyst)

Available with Spatial Analyst license.

Summary

Calculates the base e exponential of the cells in a raster.

Illustration

Exp illustration
OutRas = Exp(InRas1)

Usage

  • Input values can be integer or float as well as negative or positive.

    You can review some results for both positive and negative floating-point input values in the examples of output values from the Exponential tools.

  • The base e exponential is the most commonly used exponential function.

  • Input values less than or equal to -745 will be set to NoData in the output, because these values cannot be accurately represented by 32-bit floating-point numbers.

  • The output raster from this tool is always floating-point type, regardless of the input value type.

  • Output values from this tool are always positive.

  • If the input is a multiband raster, the output will be a multiband raster. The tool will perform the operation on each band in the input.

  • If the input is multidimensional raster data, all slices from all variables will be processed. The output will be a multidimensional raster in CRF format.

Parameters

LabelExplanationData Type
Input raster or constant value

The input values for which to find the base e exponential.

To use a number as an input for this parameter, the cell size and extent must first be set in the environment.

Raster Layer; Constant

Return Value

LabelExplanationData Type
Output raster

The output raster.

The cell values are the base e exponential of the input values.

Raster

Exp(in_raster_or_constant)
NameExplanationData Type
in_raster_or_constant

The input values for which to find the base e exponential.

To use a number as an input for this parameter, the cell size and extent must first be set in the environment.

Raster Layer; Constant

Return Value

NameExplanationData Type
out_raster

The output raster.

The cell values are the base e exponential of the input values.

Raster

Related topics