What is the correct way to write 1/2i in Matlab?

[danik_ejik]

I don't understand what am I doing wrong!?
please help:

I need to find the inverse of A,
so

and

but Matlab returns me

 

[quantumdude]

Look more closely. Are you sure it's not this?

 

[danik_ejik]

no, I'm not sure...
but what am I doing wrong ?

 

[fzero]

When you write 1/2i the reader doesn't know whether you mean (1/2)i or 1/(2i). Be more specific by using parentheses in these situations.

As for your problem, for which matrix $$A^{-1}$$ above do you find that $$AA^{-1} =1$$? That is the inverse. We can't tell because we don't know what you mean by 1/2i.