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Fast computation of a quantity

From: Eloi Martinet
Subject: Fast computation of a quantity
Date: Thu, 29 Sep 2022 16:04:16 +0200 (CEST)

Hello everyone,
My problem is the following : I have a FE space V with basis phi_i. Let u be a function on V and f a real valued function. What is the quickest way to compute the vector (\int f(u)*phi_i)_i ? I would like to use asm_generic but I don't see how to do it without looping on i and computing it for all i, which is way too long.

Thank you, have a good day.
Best regards,

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