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Oct 30 2015 11:36pm
inv(A). matlab is the way to go for any matricies help
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Oct 31 2015 05:14am
Quote (FamilyGuyViewer @ Oct 18 2015 04:52pm)
is there a website or a program that can perform inverse or transpose of a matrix that has variables...?

T = [(cosd(X))^2 (sind(X))^2 2*sind(X)*cosd(X);
(sind(X))^2 (cosd(X))^2 -2*sind(X)*cosd(X);
-sind(X)*cosd(X) sind(X)*cosd(X) (cosd(X))^2 - (sind(X))^2];

I have this matrix, and im trying to find the inverse or transpose in terms of variables.. so i can multiple this matrix by another matrix.

[Q_bar] = [T^-1] *[Q] * [T]

where Q matrix are numbers...


Matlab does it symbolically

Inverse

[ cos(X)^2/(cos(X)^4 + sin(X)^4 + 2*cos(X)^2*sin(X)^2), sin(X)^2/(cos(X)^4 + sin(X)^4 + 2*cos(X)^2*sin(X)^2), -(2*cos(X)*sin(X))/(cos(X)^4 + sin(X)^4 + 2*cos(X)^2*sin(X)^2)]
[ sin(X)^2/(cos(X)^4 + sin(X)^4 + 2*cos(X)^2*sin(X)^2), cos(X)^2/(cos(X)^4 + sin(X)^4 + 2*cos(X)^2*sin(X)^2), (2*cos(X)*sin(X))/(cos(X)^4 + sin(X)^4 + 2*cos(X)^2*sin(X)^2)]
[ (cos(X)*sin(X))/(cos(X)^4 + sin(X)^4 + 2*cos(X)^2*sin(X)^2), -(cos(X)*sin(X))/(cos(X)^4 + sin(X)^4 + 2*cos(X)^2*sin(X)^2), (cos(X)^2 - sin(X)^2)/(cos(X)^4 + sin(X)^4 + 2*cos(X)^2*sin(X)^2)]


This post was edited by TheStealthTarget on Oct 31 2015 05:17am
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