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Error when trying to enter in a simple matrix

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Brayden Reiland
Brayden Reiland 2019-11-8
关闭： MATLAB Answer Bot 2021-8-20
Hello,
I am simply trying to enter in a 3x3 matrix into matlab and it is giving me an error code, I have done this many time before and have no idea why its giving me an error this time around.
Thanks

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回答（2 个）

Fangjun Jiang
Fangjun Jiang 2019-11-8
most likely need to be written as
(cos(psi))^2
Jeremy
Jeremy 2019-11-8
The little red underlines are not just there for decoration - sin^2(x) is not valid syntax in matlab. I think you want
sin(psi)^2

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