My code continuously giving this error( Error using ./ Matrix dimensions must agree .Error in Untitled14 (line 16) r=w./wd; and the size of w is 60x1 double size of wd is 60x60 double

filename = 'datacollect2.xlsx'; num = xlsread(filename,'B1:B60'); w = num/60; N = length(num); t = 1/w; s = xlsread(filename,'B3:B3'); xt= s; g = 1/N; i = xt + num; h = xt/ i ; ln=@log; q=ln(h); zeta = g * q; j= 1-power(zeta,2); wd = w*power(j,1/2); r=w./wd; k = zeta*r; l=k*sin(wd*t); m=cos(wdt) + l; n= - zeta*w*t; p = 1 - exp(n)*(m); plot (p)

[Stephen23]

Duplicate:

https://www.mathworks.com/matlabcentral/answers/344303-my-code-continuously-giving-this-error-error-using-matrix-dimensions-must-agree-error-in-unt

Answer 1

[Star Strider]

Try this:

r = bsxfun(@rdivide, w, wd);

[Star Strider]

To calculate ‘m=cos(wd) + u;’, use bsxfun again:

m = bsxfun(@plus, cos(wd), u);

You have not stated what size ‘u’ is, so I assume it is a (60x1) vector.