Hi,
when I run your code from the command window I get two solutions:
ka=2;
landa=4;
syms x
y = (ka/landa)*((x/landa)^(ka-1))* (2^(-(x/landa)^ka));
LO = diff(y);
sf=solve(LO,x)
sf =
(2*2^(1/2))/log(2)^(1/2)
-(2*2^(1/2))/log(2)^(1/2)
Running it in a script or functions works fine too. What error do you get? Which version of MATLAB are you using?
