How to do a double fourier transform or double summation equation in Matlab?

11 ビュー (過去 30 日間)
Hi Community,
Iam very confused to this equation, because it should be written in a double fourier transform which re very difficult for me.... SO here is the equation i should solve in my Thesis :
T is hour of the years (it can be replaced with a datenum, right?) and M is month number. I just want to know how this difficult equation should be written as a code in Matlab... Im very confused.... I think it would be written in a combination of symsum, syms, and etc, but i still doubt how to write it correctly in Matlab.... WOuld anyone lend me a hand for this equation, please... Thank you so much, everyone... /.\ /.\ /.\
  2 件のコメント
Tyann Hardyn
Tyann Hardyn 2022 年 5 月 31 日
@Hiro Im sorry, Sir. But the m actually not an exponent number just like An^m... In other ways, the equation is like this :
Iam just wonder, Is the equation use for loop or not, Sir? Thank you very much

サインインしてコメントする。

採用された回答

Walter Roberson
Walter Roberson 2022 年 5 月 30 日
T cannot be replaced by a datetime. datetime objects cannot be multiplied by anything.
At one level, T could potentially be replaced by a duration() object, as durations can be multiplied... but you cannot take cos() of a duration.
syms T M
syms A [6 6]
syms alpha [1 6]
syms beta [1 6]
n = (1:6).';
m = 1:6;
Sq_est = sum(sum(A .* cos(m .* T + alpha) .* cos(n .* M + beta)))
Sq_est = 
  8 件のコメント
Tyann Hardyn
Tyann Hardyn 2022 年 5 月 31 日
編集済み: Tyann Hardyn 2022 年 5 月 31 日
@Walter Roberson Would u like to tell me the version of loop code from your code before, Sir?

サインインしてコメントする。

その他の回答 (0 件)

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by