# Finding a Number in a random array

2 ビュー (過去 30 日間)
Josiah Miles 2019 年 10 月 7 日

So I am given the code p1pA=magic(7).
How would I use Matlab to find the number in the fourth row and sixth column?
Also how would I find the twentieth number?

サインインしてコメントする。

### 採用された回答

Kevin Phung 2019 年 10 月 7 日

How would I use Matlab to find the number in the fourth row and sixth column?
p1pA=magic(7);
p1pA(4,6) %The syntax is p1Pa(row,column)
Also how would I find the twentieth number?
p1pA(20)
% if just 1 index provided, the indices go column by column.
%Ex :[1 4 7]
% [2 5 8]
% [3 6 9]

サインインしてコメントする。

### その他の回答 (1 件)

Turlough Hughes 2019 年 10 月 7 日
Have a look at the following documentation and scroll down to the part about indexing matrices with two subscripts. For your second question I believe you are looking for linear indexing which is the next section.

サインインしてコメントする。

### Community Treasure Hunt

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

Start Hunting!

Translated by