# Can someone quickly tell me how to create a field plot by hand?

**URL:** <https://boards.straightdope.com/t/can-someone-quickly-tell-me-how-to-create-a-field-plot-by-hand/107880>\
**Category:** Factual Questions\
**Created:** [May 8, 2002, 11:57am UTC](https://boards.straightdope.com/t/can-someone-quickly-tell-me-how-to-create-a-field-plot-by-hand/107880 "2002-05-08T11:57:24Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Phlip](https://avatars.discourse-cdn.com/v4/letter/p/ed8c4c/32.png) [@Phlip](https://boards.straightdope.com/u/Phlip)\
**Post date:** [May 8, 2002, 11:57am UTC](https://boards.straightdope.com/t/can-someone-quickly-tell-me-how-to-create-a-field-plot-by-hand/107880/1 "2002-05-08T11:57:24Z")

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I know how to do field plots in Mathcad and Maple, but I need to do a very simple one by hand. I just realized I have never done one by hand. I looked thru all my math books (alg-DE) and it is detailed no where. I am sure it is very easy, but I just cant remember how.

**v** =-x **x** -y **y**

Its a very simple equation. I just need the basic method for starting a hand drawn field plot.

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**Author:** ![Phlip](https://avatars.discourse-cdn.com/v4/letter/p/ed8c4c/32.png) [@Phlip](https://boards.straightdope.com/u/Phlip)\
**Post date:** [May 9, 2002, 10:01am UTC](https://boards.straightdope.com/t/can-someone-quickly-tell-me-how-to-create-a-field-plot-by-hand/107880/2 "2002-05-09T10:01:02Z")

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None of the TM can answer this simple question?

:eek: :eek: ☹ ☹