Matrix cos. Did I write the expression and correctly?

function M = cosM(A)

M=A;

for i=0:1:100

M=M-(-1)^i*A^(1*i+1)

end

end

Answer 1

[Ameer Hamza]

It should be something like this

function M = cosM(A)
M=E; % I don't know how E is defined in that equation
for k=1:1:100
    M=M+(-1)^k*A.^(2*k)/factorial(2*k);
end
end

Answer 2

[Steven Lord]

You can check your answer using the funm function in MATLAB.