please explain this error

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dav
dav 2014-10-2
回答： Deeptanu Datta 2019-12-25
I'm using matlab 2012a.
When I tried the following command it gave me an error.
Can you please explain it to me?
Thanks
Command:
max(-3/2, 7, 1.4)
Error using max
MAX with two matrices to compare and a working dimension is not supported.

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Mischa Kim
Mischa Kim 2014-10-2
编辑：Mischa Kim 2014-10-2
dav, I believe what you are trying to do is the following
max([-3/2, 7, 1.4])
The values you want to find the maximum of need to be arranged in arrary form, that's why the square brackets.
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dav
dav 2014-10-2
yep, I figured it out after a while. :) Thank you very much!

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Deeptanu Datta
Deeptanu Datta 2019-12-25
I tried running the code
clc;
clear all;
close all;
x1 = [2 3 6 9 7 4 1 5 9 36 47 25 ];
[~, x3] = max(x1,[])
It gives an error "MAX with two matrices to compare and two output arguments is not supported"
But, when I write [~, x3] = max(x1,[],2) or [~, x3] = max(x1), it works.
Please explain

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