logic used in matlab

what does this code mean.plzz explain step by step

code:

idx = any(possibleSol < 0) | any(imag(possibleSol) ~=0);

possibleSol(:, idx) = [];

[ali hassan]

plz help

https://in.mathworks.com/matlabcentral/answers/649193-array-forming-for-solution#answer_545693

Answer 1

[Steven Lord]

When you see a line of MATLAB code you don't understand, try breaking it into pieces. If you don't understand the pieces, break them up or look in the documentation.

idx = any(possibleSol < 0) | any(imag(possibleSol) ~=0); % the line

Breaking at the | operator gives pieces:

any(possibleSol < 0) % piece 1
any(imag(possibleSol) ~= 0) % piece 2

Breaking the first of those into pieces:

possibleSol < 0 % piece 1 part 1 = PP1
any( PP1 ) % piece 1 part 2

Do you understand piece 1 part 1? If not:

doc <

Do you understand what piece 1 part 2, calling any on piece 1 part 1, does? If not:

doc any

That tells you what piece 1 does. Do the same for piece 2, split it into parts. Then put the pieces back together: if you're not sure about the | operator:

doc |

[ali hassan]

https://in.mathworks.com/matlabcentral/answers/652413-logic-used-in-matlab#answer_548758

thankyou sir for your efforts but i could'nt totally understand it.i could'nt understand doc part

[Steven Lord]

If you don't understand what a function or operator in MATLAB does, look at its documentation page. You can open the documentation pages using the doc function. To open the documentation page for the any function, for example:

doc any