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Bug

The returned float values using the arcpy.FeatureSet() function is incorrectly rounded.

Last Published: May 10, 2022 ArcGIS Pro
Bug ID Number BUG-000147846
SubmittedMarch 23, 2022
Last ModifiedJuly 7, 2026
Applies toArcGIS Pro
Version found2.9.2
Operating SystemWindows OS
Operating System Version10.0
StatusAs Designed

Additional Information

Floating-point numbers cannot accurately represent all numbers along the number line, they are approximations that map numbers to the base-2 based system, which is natural for computers but less natural for base-10 representations. So some numbers, like 6285.55, may not be valid within the mantissa + exponent model used in floating point. This Esri knowledge article explains some of this: https://support.esri.com/en-us/knowledge-base/how-does-arcgis-desktop-calculate-coordinates-for-data--000010968. Another resource for explaining floating-point numbers is: http://fabiensanglard.net/floating_point_visually_explained.

Steps to Reproduce

Bug ID: BUG-000147846

Software:

  • ArcGIS Pro

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