MATLAB: How to raise a decimal numbers as power of A?

digital image processingMATLABMATLAB and Simulink Student Suite

Hello everyone..I am trying to raise decimal values which is ranging from(0.1:0.01:1) to the power of A(3×3 matrix).(eg.. A^[0.1:0.01:1]). I cannot find my answer anywhere.can anyone help me out..Thanks in advance..

Best Answer

If you want to do the element-wise exponential operation, the following will work on R2016b and onward versions

B = A.^reshape((0:0.1:1),1,1,[]);

For matrix exponentiation

B = arrayfun(@(k) {A^k}, 0:0.1:1)

Related Solutions

MATLAB: How to read .txt file which have complex numbers and how to separate real and imaginary parts of the complex numbers

fid = fopen("smithchartall.txt") ; 
S = textscan(fid,'%f %f %f\n','HeaderLines',1) ; 
fclose(fid) ; 
C1 = S{1} ; C2 = S{2} ; C3 = S{3} ; 
% Seperate real and imaginary 
C2_real = real(C2) ; 
C2_imainary = imag(C2) ;

MATLAB: How to get vectors y such that y* A = 0

Nope. You would NOT use eig, since eig solves a different problem. Why use the wrong tool to solve a simple problem?

You need to find the vectors that lie in the null-space of the columns of A. For example...

A = randn(5,3) + i*randn(5,3);
N = null(A');
N'*A
ans =
  -5.5511e-17 - 3.9552e-16i  -9.7145e-17 + 8.3267e-17i  -2.7756e-17 - 4.8572e-17i
   2.3592e-16 - 2.2204e-16i   6.9389e-18 - 1.1102e-16i   3.5388e-16 - 4.4409e-16i

N is a column matrix, here with two columns. See that the transpose of those columns, when left multiplied times A, yields zero. Don't forget that ' is indeed a conjugate transpose, as you desired.

Best Answer

Related Solutions

MATLAB: How to read .txt file which have complex numbers and how to separate real and imaginary parts of the complex numbers

MATLAB: How to get vectors y such that y* A = 0

Related Question