# Typo on the api documentation page for MatrixBuilder

**URL:** https://discourse.vtk.org/t/typo-on-the-api-documentation-page-for-matrixbuilder/7627
**Category:** Web
**Created:** [January 12, 2022, 1:59pm UTC](https://discourse.vtk.org/t/typo-on-the-api-documentation-page-for-matrixbuilder/7627 "2022-01-12T13:59:28Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![Mohamed\_Waheed](https://discourse.vtk.org/user_avatar/discourse.vtk.org/mohamed_waheed/32/4536_2.png) [@Mohamed\_Waheed](https://discourse.vtk.org/u/Mohamed_Waheed)
#### Post date: [January 12, 2022, 1:59pm UTC](https://discourse.vtk.org/t/typo-on-the-api-documentation-page-for-matrixbuilder/7627/1 "2022-01-12T13:59:28Z")

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Hello,

The example given on this page has a typo “f” instead of “F” in “buildfromDegree”

> **[MatrixBuilder](https://kitware.github.io/vtk-js/api/Common_Core_MatrixBuilder.html#Usage)**
>
> IntroductionThe vtkMatrixBuilder class provides a system to create a mat4transformation matrix. All functions return the MatrixBuilder Objectinstance, allowing transformations to be chained. Usagelet

Nothing major, but it wasted some time and effort for me.

Thank you.

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### Author: ![cory.quammen](https://discourse.vtk.org/user_avatar/discourse.vtk.org/cory.quammen/32/6751_2.png) [@cory.quammen](https://discourse.vtk.org/u/cory.quammen)
#### Post date: [January 12, 2022, 2:56pm UTC](https://discourse.vtk.org/t/typo-on-the-api-documentation-page-for-matrixbuilder/7627/2 "2022-01-12T14:56:47Z")

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@Sebastien_Jourdain @Forrest

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### Author: ![Sebastien\_Jourdain](https://discourse.vtk.org/user_avatar/discourse.vtk.org/sebastien_jourdain/32/100_2.png) [@Sebastien\_Jourdain](https://discourse.vtk.org/u/Sebastien_Jourdain)
#### Post date: [January 12, 2022, 5:15pm UTC](https://discourse.vtk.org/t/typo-on-the-api-documentation-page-for-matrixbuilder/7627/3 "2022-01-12T17:15:18Z")

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Thanks for your contribution A [pull request](https://github.com/Kitware/vtk-js/pull/2223) was made following your suggestion.

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### Author: ![Mohamed\_Waheed](https://discourse.vtk.org/user_avatar/discourse.vtk.org/mohamed_waheed/32/4536_2.png) [@Mohamed\_Waheed](https://discourse.vtk.org/u/Mohamed_Waheed)
#### Post date: [January 13, 2022, 2:08pm UTC](https://discourse.vtk.org/t/typo-on-the-api-documentation-page-for-matrixbuilder/7627/4 "2022-01-13T14:08:30Z")

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You are very welcome, thanks for your quick response as well!