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L^∞ Norm

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5 years 4 months ago #1328 by hvwahl
L^∞ Norm was created by hvwahl
Hi Everyone,

is there a good way to compute the (element-wise) L∞-norm of a GridFunction? I need this as part of a stabilising bilinear form.

Best wishes,
Henry
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5 years 4 months ago #1340 by christopher
Replied by christopher on topic L^∞ Norm
Hi Henry,
I think that point evaluation and some finger crossing is the easiest way. For efficient point evaluation have a look at this thread:
need help to implement the bound limiter (again...)
If you need more accuracy you could combine this with an optimizer from scipy

Best
Christopher
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5 years 4 months ago #1342 by hvwahl
Replied by hvwahl on topic L^∞ Norm
Hi Christopher,
Thank you very much! I will go and have a look at that :) !
Best wishes,
Henry
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