Calculating exp[iMθ] for a Matrix M

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SUMMARY

The discussion focuses on calculating the matrix exponential exp[iMθ] for the matrix M defined as [[0, 1], [1, 0]]. The approach suggested involves using the expansion of the exponential function, specifically the formula exp[iMθ] = cos(Mθ) + i sin(Mθ). Participants agree that separating the real and imaginary components from this expansion is a valid method to solve the problem.

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Homework Statement



Given matrix M=
0 1
1 0

Find exp[iMθ] where θ is a constant.

Homework Equations


The Attempt at a Solution



Should I proceed in the following way?

cos Mθ+i sin Mθ=expansion of exp[iMθ]

Then to collect real and imaginary parts from the expansion?
 
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That sounds like a good idea.
 

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