# function plotting

**URL:** https://discourse.paraview.org/t/function-plotting/1713
**Category:** ParaView Support
**Created:** [April 23, 2019, 8:46pm UTC](https://discourse.paraview.org/t/function-plotting/1713 "2019-04-23T20:46:56Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![greenwade](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/g/f07891/32.png) [@greenwade](https://discourse.paraview.org/u/greenwade)
#### Post date: [April 23, 2019, 8:46pm UTC](https://discourse.paraview.org/t/function-plotting/1713/1 "2019-04-23T20:46:56Z")

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Probably newbie question, if so I’ll apologize in advance.

I’m looking to plot math expressions, either y=f(x), z=f(x,y) or w=f(x,y,z). Ideally I’d like to specify the functions, give it ranges for the domain variables, and get a plot. When this is done, I’ll then need to plot individual values on the same plot. My question is on the first topic (plotting functions) I believe I know how to do the second.

thanks,

-eric

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### Author: ![mwestphal](https://discourse.paraview.org/user_avatar/discourse.paraview.org/mwestphal/32/17_2.png) [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [April 29, 2019, 8:26am UTC](https://discourse.paraview.org/t/function-plotting/1713/2 "2019-04-29T08:26:04Z")

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You will need to generate the data first. You can do that with a Programmable Source quite easilly.