How to extract the second row of a 2x1 matrix?

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Malu 2018-3-9

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https://ww2.mathworks.cn/matlabcentral/answers/387353-how-to-extract-the-second-row-of-a-2x1-matrix

回答： James Tursa 2018-3-9

How to extract the first and second rows of a matrix and equate it seperatly to two values?

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Answer 1

James Tursa 2018-3-9

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https://ww2.mathworks.cn/matlabcentral/answers/387353-how-to-extract-the-second-row-of-a-2x1-matrix#answer_309297

在 MATLAB Online 中打开

M = your two-row matrix
M1 = M(1,:); % 1st row of M
M2 = M(2,:); % 2nd row of M

However, in many cases it is better to simply use M(1,:) and M(2,:) directly in your downstream code instead of creating separate variables M1 and M2. This is particularly true if you have many rows to work with ... you should never create a bunch of variables called M1, M2, M3, M4, etc for that situation.