Illegal use of reserved keyword "elseif" keep showing up?

function isortvector
A = [9 -7 8 4 -3 7]
inp = input("enter 0 for ascendig && 1 for decending");
ascending = []; 
descendig = [];
if inp == '0'
    for i = 1:6
        x = A(1);
        for j=1:length(A)
            if A(j) < x
                x=A(j);
            end
        end 
        ascending(end+1)=x; A(A==x)=[];
    end 
    disp("Ascending:"); disp(ascending)
end
elseif inp =='1'
    for i = 1:6
        x=A(1);
        for j=1:length(A)
            if A(j) > x
                x = A(j);
                
            end 
            descending(end+1) = x; A(A==x)=[];
        end
        disp("Descending:");
        disp(descendig)
        disp("uncorect input:")
        disp(A)
    end 
end 

[SL: formatted code as code]

[Stephen23]

Note that as you have called it INPUT will return numeric values. If you expect characters (as you show use with IF and ELSEIF) then you will need to use the 's' option:

inp = input("enter 0 for ascendig && 1 for decending","s");
%                                                     ^^^

You also have to fix the names of some variables.

Answer 1

[Stephen23]

If you align your code consistently then the problem is very clear:

if inp == '0'
    ..
end % <- delete this
elseif inp =='1'
    ..
end

Tip: to align code automatically select all of your code and press ctrl+i.

[mohammad]

Thank you very much sir.