# Is there any way to plot an inequality of 7 variables?

**URL:** <https://discourse.julialang.org/t/is-there-any-way-to-plot-an-inequality-of-7-variables/94770>\
**Category:** General Usage\
**Tags:** question\
**Created:** [February 17, 2023, 4:46am UTC](https://discourse.julialang.org/t/is-there-any-way-to-plot-an-inequality-of-7-variables/94770 "2023-02-17T04:46:33Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Kanishk](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/kanishk/32/46224_2.png) [@Kanishk](https://discourse.julialang.org/u/Kanishk)\
**Post date:** [February 17, 2023, 4:46am UTC](https://discourse.julialang.org/t/is-there-any-way-to-plot-an-inequality-of-7-variables/94770/1 "2023-02-17T04:46:33Z")

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Hello,

Could you please explain if there is any way to plot inequality of the form f(p,q,r,s,t,u,v) \<= g(p,q,r,s,t,u,v) ? Any example will be really helpful.

Thank you

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**Author:** ![empet](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/empet/32/221303_2.png) [@empet](https://discourse.julialang.org/u/empet)\
**Post date:** [February 17, 2023, 7:12am UTC](https://discourse.julialang.org/t/is-there-any-way-to-plot-an-inequality-of-7-variables/94770/3 "2023-02-17T07:12:30Z")

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You can plot only projections onto the 3d space eventually 4d, where the fourth dimention is color.

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**Author:** ![bilderbuchi](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/bilderbuchi/32/13562_2.png) [@bilderbuchi](https://discourse.julialang.org/u/bilderbuchi)\
**Post date:** [February 17, 2023, 8:20am UTC](https://discourse.julialang.org/t/is-there-any-way-to-plot-an-inequality-of-7-variables/94770/4 "2023-02-17T08:20:45Z")

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Potentially (e.g. if your problem is a physical one) you can apply [Buckingham π theorem - Wikipedia](https://en.m.wikipedia.org/wiki/Buckingham_%CF%80_theorem) to reduce the number of Parameters (by typically at most 4).