How can I use loop for summation of cosines?

1 回表示 (過去 30 日間)
Arijit De
Arijit De 2015 年 8 月 12 日
回答済み: Walter Roberson 2015 年 8 月 12 日
Hi: I was trying to take the following sum, y = sum over f's (harmonics) of cos(2*pi*f*t) using this loop: t = -1:.001:1; f = 1:10 for y = sum (cos(2*pi*f*t), f) end plot (t,y) But it's leading to errors! Can anyone please advise? Thanks. Arijit
  1 件のコメント
Purushottama Rao
Purushottama Rao 2015 年 8 月 12 日
loop variable for loop is not defined. Futher more in your eqn, f is an array of size 10, and t is an array of size 2001. How do you want to iterate y?

サインインしてコメントする。

回答 (1 件)

Walter Roberson
Walter Roberson 2015 年 8 月 12 日
sum() of something that is numeric in its first argument must either have no second argument or the second argument must be the dimension number.
symsum() of a symbolic expression expression allows a variable and a range of values
But what you need is bsxfun() to calculate the table of values and then to sum() along the appropriate dimension

カテゴリ

Help Center および File ExchangeLoops and Conditional Statements についてさらに検索

タグ

製品

Community Treasure Hunt

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

Start Hunting!

Translated by