2x2 matrix calculation
27 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
Dear all,
I want to solve the 2x2 matrix problem.
There are three 2x2 matrix (Ta, Tb, Tc). Two matrix are known and one matrix is unknown value.
For example Ta = [3 4 ; 4 3], Tb=[1 2 ; 2 1], Tc=[x y ; y x].
Can I solve the Tc, when I have equation with Ta=Tc * Tb * Tc.
Thank you~!
0 Kommentare
Akzeptierte Antwort
Sam Chak
am 21 Jun. 2022
Hi @dhlee
Maybe you can solve the problem like this?
syms x y
Ta = sym('Ta', [2 2]);
Tb = sym('Tb', [2 2]);
Tc = sym('Tc', [2 2]);
Ta = [sym('3') sym('4'); sym('4') sym('3')]
Tb = [sym('1') sym('2'); sym('2') sym('1')]
Tc = [x y; y x]
Meqn = Ta - Tc*Tb*Tc
eqns = [Meqn(1, 1) == 0, Meqn(1, 2) == 0];
[xsol, ysol] = solve(eqns)
x = double(xsol)
y = double(ysol)
% Check if correct
TB = [1 2; 2 1];
TC = [x(3) y(3); y(3) x(3)];
TA = TC*TB*TC
Weitere Antworten (0)
Siehe auch
Kategorien
Mehr zu Linear Algebra finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!