How to find the sum of characters in a cell array?

I need to find the total number of '/' and 'X' characters in my cell array and store the values in variables called num_strikes nad num_spares.

When I run the code below, I get this:

Undefined function 'eq' for input arguments of type 'cell'.

Error in solution (line 6) if bowling(k)=='/'

bowling=cell(1,2)
bowling= {{7,2,8,'/',6,2,'X',9,'/',9,0,'X','X',8,1,7,'/',9}, {'X',9, '/','X',8,'/','X','X',7,2,'X',8,'/',9,0}}
k=0;
num_strikes=0;
for k=1:length(bowling)
    if bowling(k)=='/'
        k=k+1
        num_strikes=k
    end
end
disp(num_strikes)

Answer 1

[Scott MacKenzie]

bowling= {{7,2,8,'/',6,2,'X',9,'/',9,0,'X','X',8,1,7,'/',9}, {'X',9, '/','X',8,'/','X','X',7,2,'X',8,'/',9,0}};
num_spares = sum(strcmp([bowling{:}],'/'));
num_strikes = sum(strcmp([bowling{:}],'X'));
disp(num_spares);

     6

disp(num_strikes);

     8