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Question: Skipping NULL values

Question:Skipping NULL values

patrick22 30 Maple
map
June 19 2022
3

Hello,

I am a first time user of Maple. I have an (m x n) array called 'arr' with missing values. For all non NULL values within the array I'd like to apply a function, called 'EigenvalueEquation'. My Ansatz is as follows:

map(EigenvalueEquation, arr)

It produces an error since one cannot execute a function with a NULL value as an input. How can I skip those entries within my array? I'd like to avoid looping over the entire array.

Any help is greatly appreciated.

Patrick
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