simple Matlab question

[Girly_girl]

hi
Just a quicky..
lets say we say M3 in matlab.. and then later we use A = M3'

What does the ' do to M3?

 

[robotics_mait]

i think it is used to denote a qualification..(just like in c or c++)

 

[Girly_girl]

Qualification? could u please be more specific? thanks

 

[Rob B]

If M3 is a matrix, M3' is the transposition of that matrix.

The apostrophe is a Matlab transposition operator.

 

[sweetchoto]

Hi,

If M3 is a matrix. Then M3' is simply 'Conjugate Transpose' of the data stored in M3. If you have only Real values stored in M3 then it ll be simply transpose of M3.

This is wht you are asking for or ?

---------- Post added at 13:59 ---------- Previous post was at 13:57 ----------

Forgot to add,If you just want to transpose the matrix without taking conjugate of the data entries of matrix M3 then instead of using M3' use M3.',it ll just transpose the matrix having no effect on complex data entries of the matrix.

/SC

 

[Girly_girl]

yea thats exactly wat im asking..thank you
just to clarify on the conjugate transpose. is that where the real values are saved as imaginary values and wice versa?

 

[sweetchoto]

If your data entries are complex,then it ll be of form, a+ib or a-ib. If you ll use M3' it will conjugate the data entry first like a-ib or a+ib(respectively written in order as before) and then will do the transpose operation. If you ll use M3.' it will simply transpose the matrix and do not perform any conjugate operation.
Hope it is clear now

 

[Girly_girl]

Excellent many thanks for ur quick reply

 

[robotics_mait]

mistaken by language code..anyways thanx fr correcting me..