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#1 2017-11-29 05:23:54

zulqarnain
Member
Registered: 2017-11-27
Posts: 6

Functional and function

Hi Professor
What is difference between function and functional?

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#2 2017-11-29 07:02:35

sobereva
Tian Lu (Multiwfn developer)
From: Beijing
Registered: 2017-09-11
Posts: 138
Website

Re: Functional and function

Functional can be regarded as "function of function".
For example, according to DFT, energy of a system is determined by electron density distribution in ground state, while electron density itself is a function, therefore, energy is functional of electron density.

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#3 2017-11-29 07:15:15

zulqarnain
Member
Registered: 2017-11-27
Posts: 6

Re: Functional and function

Thanks a lot.

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