# Typo in Table 9.2 of ITK manual

**URL:** <https://discourse.itk.org/t/typo-in-table-9-2-of-itk-manual/4280>\
**Category:** Uncategorized\
**Created:** [July 20, 2021, 1:54am UTC](https://discourse.itk.org/t/typo-in-table-9-2-of-itk-manual/4280 "2021-07-20T01:54:14Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![zhuangming.shen](https://discourse.itk.org/letter_avatar_proxy/v4/letter/z/4af34b/32.png) [@zhuangming.shen](https://discourse.itk.org/u/zhuangming.shen)\
**Post date:** [July 20, 2021, 1:54am UTC](https://discourse.itk.org/t/typo-in-table-9-2-of-itk-manual/4280/1 "2021-07-20T01:54:14Z")

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It seems a typo in table 9.2 of ITK manual, Book 1, Updated for ITK version 5.2.0. UL should be SL, which corresponds to signed long.

 ![Typo in Table 9.2](https://discourse.itk.org/uploads/default/original/2X/c/c454b8016b3bb6c4b2140fc0e403f101c668a725.png)

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**Author:** ![matt.mccormick](https://discourse.itk.org/user_avatar/discourse.itk.org/matt.mccormick/32/7_2.png) [@matt.mccormick](https://discourse.itk.org/u/matt.mccormick)\
**Post date:** [July 20, 2021, 6:03pm UTC](https://discourse.itk.org/t/typo-in-table-9-2-of-itk-manual/4280/2 "2021-07-20T18:03:49Z")

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Hi @zhuangming.shen ,

Good catch. 🦅 👁

Please review this patch:

> <https://github.com/InsightSoftwareConsortium/ITKSoftwareGuide/pull/158>