# Python Calculator, finding maximum and minimum of two expressions to Output a field

**URL:** https://discourse.paraview.org/t/python-calculator-finding-maximum-and-minimum-of-two-expressions-to-output-a-field/9276
**Category:** ParaView Support
**Created:** [March 24, 2022, 11:02pm UTC](https://discourse.paraview.org/t/python-calculator-finding-maximum-and-minimum-of-two-expressions-to-output-a-field/9276 "2022-03-24T23:02:52Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![Qutadah\_Rababah](https://discourse.paraview.org/user_avatar/discourse.paraview.org/qutadah_rababah/32/7033_2.png) [@Qutadah\_Rababah](https://discourse.paraview.org/u/Qutadah_Rababah)
#### Post date: [March 24, 2022, 11:02pm UTC](https://discourse.paraview.org/t/python-calculator-finding-maximum-and-minimum-of-two-expressions-to-output-a-field/9276/1 "2022-03-24T23:02:52Z")

</div>

Hello everyone,

I am trying to calculate a variable and show it as a point field in ParaView. I am using Python Calculator and until now, no luck. I am not sure what the problem is, since the code is correct.

The formula of the variable **c\_beta** is as follows  
 ![image](https://discourse.paraview.org/uploads/default/original/2X/8/8e5c9fd8d976a1004bffa4421398af98cbd46e5f.png)

where bmax and b min are 0.8 and 0.001 respectively  
Here is the code I am using.

```auto
 minimum(maximum((1-PointData['alpha.air'])*0.8 / (1-0.8)*PointData['alpha.air']), 0.001/PointData['alpha.air']),1)

```

Here is the state file:

[cBeta.pvsm](https://discourse.paraview.org/uploads/short-url/aiFcZ1E30Ev57siggleH0DKvPWq.pvsm) (1.0 MB)

Can anyone please advise?

Thanks!