how can I use type engine.ScalarField as float64?

[Md. Abdus Sami Akanda]

Hello everyone,

I'm trying to get the square of the x component of m. For that I used the m.Comp(0) function and when I write:

mx = m.Comp(0);

m2 = mx*mx;

print(m2);

I get the following error:

: type mismatch: can not use type engine.ScalarField as float64

Is there any way that I can convert mx to float64?

Thanks.

Regards,

Md Abdus Sami Akanda

Khulna University

Khulna, Bangladesh

[Josh Lauzier]

Hello,

m.comp(0) gives you the x component of m for each cell. So if m is a LxMxN array of 3-component vectors, m.comp(0) is an LxMxN array of 1 component vectors/scalars (just the x component).

If you want just the average, you want something like "m.comp(0).average()" instead. This should allow you to square it.

It's a bit confusing, if you try "print(m.comp(0))", it does the averaging implicitly for you, so really it's doing "print(m.comp(0).average())" to the command line instead. But you can see the full details if you "save(m.comp(0))".

Best,

Josh L.

[Md. Abdus Sami Akanda]

Thank you so much. I was able to solve my issue.

Regards,

Md Abdus Sami Akanda