i had matrix s of size 4*12540, i want to take power of this matrix raise to 4*12540,how should i do it?

i had matrix s of size 4*12540, i want to take power of this matrix raise to 4*12540,how should i do it?

[amina mehmood]

i had tried s2.^4*12540, it works but now i am taking the square root of this but error occurred that Matrix must be square. what should i do now?

[amina mehmood]

s2_sqrt=sqrtm(s2_power) this was generating error of matrix must be square then i tried s2_sqrt=sqrt(s2_power) it gives result so what is the difference among sqrtm and sqrt

Answer 1

[Mischa Kim]

Amina, I am not sure I can follow. In general, if you need to take the nth power simply use

 n  = 3;
 s3 = s.^n;

or

 s3 = s.^3;

[amina mehmood]

i had tried s2.^4*12540, it works but now i am taking the square root of this s2_sqrt=sqrtm(s2_power) this was generating error of matrix must be square then i tried s2_sqrt=sqrt(s2_power) it gives result so what is the difference among sqrtm and sqrt