# Matrix based regression calculations for polynomial coefficients

**URL:** <https://forum.inductiveautomation.com/t/matrix-based-regression-calculations-for-polynomial-coefficients/24857>\
**Category:** Ignition\
**Created:** [May 9, 2019, 9:39pm UTC](https://forum.inductiveautomation.com/t/matrix-based-regression-calculations-for-polynomial-coefficients/24857 "2019-05-09T21:39:51Z")\
**Posts on this page:** 1\
**Showing post:** 9

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**Author:** ![JordanCClark](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/jordancclark/32/83362_2.png) [@JordanCClark](https://forum.inductiveautomation.com/u/JordanCClark)\
**Post date:** [August 8, 2019, 7:57pm UTC](https://forum.inductiveautomation.com/t/matrix-based-regression-calculations-for-polynomial-coefficients/24857/9 "2019-08-08T19:57:49Z")

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Written before we had access to Apache Commons Math 🙂 .

> [@Math Extensions for Ignition](http://forum.inductiveautomation.com/t/math-extensions-for-ignition/3106):
>
> EDIT 2017-07-13: Things have changed enough that this first post is getting revamped. EDIT 2019-08-08: Re-uploaded due to broken link Some useful math functions just aren’t available through scripting. This is an attempt to rectify some of it. Functions: sum mean rectangular-to-polar conversions polar-to-rectangular conversions simple linear regressions polynomial regression greatest-common-denominator least common multiple standard deviation (population and sample) decimal to BCD decimal t…

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