MATLAB: Multiply all pages of a matrix

MATLABmatrix manipulationmultiplication

I have a 2x2xn matrix and I want to multiply all pages together. I know I can do it using a loop. Is there any way that does NOT require looping, however? Thanks!

aMat=reshape(1:20,[2,2,5])
bMat = aMat(:,:,1)*aMat(:,:,2)*aMat(:,:,3)*aMat(:,:,4)*aMat(:,:,5)
cMat = eye(2);
for i=1:size(aMat,3)
    cMat = cMat*aMat(:,:,i);
end
cMat

Best Answer

AFAIK there is no alternative way in general; unless your matrices has special property that can use some simplification.

Related Solutions

MATLAB: How to plot this implicit function

Try symbolic expression

clc,clear
alpha=1.5; A=0.0207; gamma=0.25;
syms beta eps
x = (beta-alpha*(beta-gamma)+sqrt((beta-alpha*(beta-gamma)).^2+4*alpha*beta*gamma*A))./(2*beta);
y =  x.*(1-x).*beta/gamma;
t =  -x+x.*y.*(alpha-eps*beta)./((A+x+y).^2);
d =  eps*beta.*x.*y.*(x.^2+(A+x).*x+A*alpha)./((A+x+y).^3);
    % convert symbolic expression to function handle
F = matlabFunction(t.^2 - d,'vars',[beta eps]);
ezplot(F,[0,1,0,1]);

MATLAB: Page-Up Page-Down in MATLAB terminal

Are you using the machine console with no graphics running? Or are you connecting via serial port? If neither, then although you might be running with -nodisplay you would be running inside a terminal session provided by Linux (e.g., xterm) and that would be the tool that would offer scrolling.

Best Answer

Related Solutions

MATLAB: How to plot this implicit function

MATLAB: Page-Up Page-Down in MATLAB terminal

Related Question